Scala Standard Library 2.13.16 - scala.sys.process.ProcessBuilder
Keywords: Scala Standard Library 2.13.16 scala.sys.process.ProcessBuilder

Scala Standard Library2.13.16 < Back
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# Packages

-  package root

  This is the documentation for the Scala standard library.

  This is the documentation for the Scala standard library.

  #### Package structure

  The scala package contains core types like `Int`, `Float`, `Array` or `Option` which are accessible in all Scala compilation units without explicit qualification or imports.

  Notable packages include:

  - `scala.collection` and its sub-packages contain Scala's collections framework
    - `scala.collection.immutable` - Immutable, sequential data-structures such as `Vector`, `List`, `Range`, `HashMap` or `HashSet`
    - `scala.collection.mutable` - Mutable, sequential data-structures such as `ArrayBuffer`, `StringBuilder`, `HashMap` or `HashSet`
    - `scala.collection.concurrent` - Mutable, concurrent data-structures such as `TrieMap`
  - `scala.concurrent` - Primitives for concurrent programming such as `Futures` and `Promises`
  - `scala.io` - Input and output operations
  - `scala.math` - Basic math functions and additional numeric types like `BigInt` and `BigDecimal`
  - `scala.sys` - Interaction with other processes and the operating system
  - `scala.util.matching` - Regular expressions

  Other packages exist. See the complete list on the right.

  Additional parts of the standard library are shipped as separate libraries. These include:

  - `scala.reflect` - Scala's reflection API (scala-reflect.jar)
  - `scala.xml` - XML parsing, manipulation, and serialization (scala-xml.jar)
  - `scala.collection.parallel` - Parallel collections (scala-parallel-collections.jar)
  - `scala.util.parsing` - Parser combinators (scala-parser-combinators.jar)
  - `scala.swing` - A convenient wrapper around Java's GUI framework called Swing (scala-swing.jar)

  #### Automatic imports

  Identifiers in the scala package and the `scala.Predef` object are always in scope by default.

  Some of these identifiers are type aliases provided as shortcuts to commonly used classes. For example, `List` is an alias for `scala.collection.immutable.List`.

  Other aliases refer to classes provided by the underlying platform. For example, on the JVM, `String` is an alias for `java.lang.String`.

  Definition Classes
    root
-  package scala

  Core Scala types.

  Core Scala types. They are always available without an explicit import.

  Definition Classes
    root
-  package sys

  The package object `scala.sys` contains methods for reading and altering core aspects of the virtual machine as well as the world outside of it.

  The package object `scala.sys` contains methods for reading and altering core aspects of the virtual machine as well as the world outside of it.

  Definition Classes
    scala
-  package process
  Definition Classes
    sys
- BasicIO
- FileProcessLogger
- Process
- ProcessBuilder
- ProcessCreation
- ProcessIO
- ProcessImplicits
- ProcessLogger

t

scala.sys.process

# ProcessBuilder

###
Companion object ProcessBuilder

#### trait ProcessBuilder extends Source with Sink

Represents a sequence of one or more external processes that can be executed. A `ProcessBuilder` can be a single external process, or a combination of other `ProcessBuilder`. One can control where the output of an external process will go to, and where its input will come from, or leave that decision to whoever starts it.

One creates a `ProcessBuilder` through factories provided in scala.sys.process.Process's companion object, or implicit conversions based on these factories made available in the package object scala.sys.process. Here are some examples:

    import scala.sys.process._

    // Executes "ls" and sends output to stdout
    "ls".!

    // Execute "ls" and assign a `LazyList[String]` of its output to "contents".
    val contents = Process("ls").lazyLines

    // Here we use a `Seq` to make the parameter whitespace-safe
    def contentsOf(dir: String): String = Seq("ls", dir).!!

The methods of `ProcessBuilder` are divided in three categories: the ones that combine two `ProcessBuilder` to create a third, the ones that redirect input or output of a `ProcessBuilder`, and the ones that execute the external processes associated with it.

#### Combining `ProcessBuilder`

Two existing `ProcessBuilder` can be combined in the following ways:

- They can be executed in parallel, with the output of the first being fed as input to the second, like Unix pipes. This is achieved with the `#|` method.
- They can be executed in sequence, with the second starting as soon as the first ends. This is done by the `###` method.
- The execution of the second one can be conditioned by the return code (exit status) of the first, either only when it's zero, or only when it's not zero. The methods `#&&` and `#||` accomplish these tasks.

#### Redirecting Input/Output

Though control of input and output can be done when executing the process, there's a few methods that create a new `ProcessBuilder` with a pre-configured input or output. They are `#<`, `#>` and `#>>`, and may take as input either another `ProcessBuilder` (like the pipe described above), or something else such as a `java.io.File` or a `java.io.InputStream`. For example:

    new URL("https://databinder.net/dispatch/About") #> "grep JSON" #>> new File("About_JSON") !

#### Starting Processes

To execute all external commands associated with a `ProcessBuilder`, one may use one of four groups of methods. Each of these methods have various overloads and variations to enable further control over the I/O. These methods are:

- `run`: the most general method, it returns a scala.sys.process.Process immediately, and the external command executes concurrently.
- `!`: blocks until all external commands exit, and returns the exit code of the last one in the chain of execution.
- `!!`: blocks until all external commands exit, and returns a `String` with the output generated.
- `lazyLines`: returns immediately like `run`, and the output being generated is provided through a `LazyList[String]`. Getting the next element of that `LazyList` may block until it becomes available. This method will throw an exception if the return code is different than zero -- if this is not desired, use the `lazyLines_!` method.

#### Handling Input and Output

If not specified, the input of the external commands executed with `run` or `!` will not be tied to anything, and the output will be redirected to the stdout and stderr of the Scala process. For the methods `!!` and `lazyLines`, no input will be provided, and the output will be directed according to the semantics of these methods.

Some methods will cause stdin to be used as input. Output can be controlled with a scala.sys.process.ProcessLogger -- `!!` and `lazyLines` will only redirect error output when passed a `ProcessLogger`. If one desires full control over input and output, then a scala.sys.process.ProcessIO can be used with `run`.

For example, we could silence the error output from `lazyLines_!` like this:

    val etcFiles = "find /etc" lazyLines_! ProcessLogger(line => ())

#### Extended Example

Let's examine in detail one example of usage:

    import scala.sys.process._
    "find src -name *.scala -exec grep null {} ;"  #|  "xargs test -z"  #&&  "echo null-free"  #||  "echo null detected"  !

Note that every `String` is implicitly converted into a `ProcessBuilder` through the implicits imported from scala.sys.process. These `ProcessBuilder` are then combined in three different ways.

1. `#|` pipes the output of the first command into the input of the second command. It mirrors a shell pipe (`|`).
2. `#&&` conditionally executes the second command if the previous one finished with exit value 0. It mirrors shell's `&&`.
3. `#||` conditionally executes the third command if the exit value of the previous command is different than zero. It mirrors shell's `||`.

Finally, `!` at the end executes the commands, and returns the exit value. Whatever is printed will be sent to the Scala process standard output. If we wanted to capture it, we could run that with `!!` instead.

Note: though it is not shown above, the equivalent of a shell's `;` would be `###`. The reason for this name is that `;` is a reserved token in Scala.

Source
  ProcessBuilder.scala

Linear Supertypes
Sink, Source, AnyRef, Any
Type Hierarchy
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Ordering

1. Alphabetic
2. By Inheritance

Inherited

1. ProcessBuilder
2. Sink
3. Source
4. AnyRef
5. Any

Implicitly

1. by any2stringadd
2. by StringFormat
3. by Ensuring
4. by ArrowAssoc

1. Hide All
2. Show All

Visibility

1. Public
2. Protected

### Abstract Value Members

1.  abstract def !(log: ProcessLogger): Int

   Starts the process represented by this builder, blocks until it exits, and returns the exit code.

   Starts the process represented by this builder, blocks until it exits, and returns the exit code. Standard output and error are sent to the given ProcessLogger.

2.  abstract def !: Int

   Starts the process represented by this builder, blocks until it exits, and returns the exit code.

   Starts the process represented by this builder, blocks until it exits, and returns the exit code. Standard output and error are sent to the console.

3.  abstract def !!(log: ProcessLogger): String

   Starts the process represented by this builder, blocks until it exits, and returns the output as a String.

   Starts the process represented by this builder, blocks until it exits, and returns the output as a String. Standard error is sent to the provided ProcessLogger. If the exit code is non-zero, an exception is thrown.

4.  abstract def !!: String

   Starts the process represented by this builder, blocks until it exits, and returns the output as a String.

   Starts the process represented by this builder, blocks until it exits, and returns the output as a String. Standard error is sent to the console. If the exit code is non-zero, an exception is thrown.

5.  abstract def !!<(log: ProcessLogger): String

   Starts the process represented by this builder, blocks until it exits, and returns the output as a String.

   Starts the process represented by this builder, blocks until it exits, and returns the output as a String. Standard error is sent to the provided ProcessLogger. If the exit code is non-zero, an exception is thrown. The newly started process reads from standard input of the current process.

6.  abstract def !!<: String

   Starts the process represented by this builder, blocks until it exits, and returns the output as a String.

   Starts the process represented by this builder, blocks until it exits, and returns the output as a String. Standard error is sent to the console. If the exit code is non-zero, an exception is thrown. The newly started process reads from standard input of the current process.

7.  abstract def !<(log: ProcessLogger): Int

   Starts the process represented by this builder, blocks until it exits, and returns the exit code.

   Starts the process represented by this builder, blocks until it exits, and returns the exit code. Standard output and error are sent to the given ProcessLogger. The newly started process reads from standard input of the current process.

8.  abstract def !<: Int

   Starts the process represented by this builder, blocks until it exits, and returns the exit code.

   Starts the process represented by this builder, blocks until it exits, and returns the exit code. Standard output and error are sent to the console. The newly started process reads from standard input of the current process.

9.  abstract def ###(other: ProcessBuilder): ProcessBuilder

   Constructs a command that will run this command and then `other`.

   Constructs a command that will run this command and then `other`. The exit code will be the exit code of `other`.

10.  abstract def #&&(other: ProcessBuilder): ProcessBuilder

    Constructs a command that runs this command first and then `other` if this command succeeds.

11.  abstract def #|(other: ProcessBuilder): ProcessBuilder

    Constructs a command that will run this command and pipes the output to `other`.

    Constructs a command that will run this command and pipes the output to `other`. `other` must be a simple command.

12.  abstract def #||(other: ProcessBuilder): ProcessBuilder

    Constructs a command that runs this command first and then `other` if this command does not succeed.

13.  abstract def canPipeTo: Boolean

    True if this command can be the target of a pipe.

14.  abstract def hasExitValue: Boolean

    True if this command has an exit code which should be propagated to the user.

    True if this command has an exit code which should be propagated to the user. Given a pipe between A and B, if B.hasExitValue is true then the exit code will be the one from B; if it is false, the one from A. This exists to prevent output redirections (implemented as pipes) from masking useful process error codes.

15.  abstract def lazyLines(log: ProcessLogger, capacity: Integer): LazyList[String]

    Starts the process represented by this builder.

    Starts the process represented by this builder. The output is returned as a LazyList that blocks when lines are not available but the process has not completed. The producer process will block if the given capacity of lines if filled without being consumed from the LazyList. Standard error is sent to the provided ProcessLogger. If the process exits with a non-zero value, the LazyList will provide all lines up to termination and then throw an exception.

16.  abstract def lazyLines(log: ProcessLogger): LazyList[String]

    Starts the process represented by this builder.

    Starts the process represented by this builder. The output is returned as a LazyList that blocks when lines are not available but the process has not completed. Standard error is sent to the provided ProcessLogger. If the process exits with a non-zero value, the LazyList will provide all lines up to termination and then throw an exception.

17.  abstract def lazyLines(capacity: Integer): LazyList[String]

    Starts the process represented by this builder.

    Starts the process represented by this builder. The output is returned as a LazyList that blocks when lines are not available but the process has not completed. The producer process will block if the given capacity of lines if filled without being consumed from the LazyList. Standard error is sent to the console. If the process exits with a non-zero value, the LazyList will provide all lines up to termination and then throw an exception.

18.  abstract def lazyLines: LazyList[String]

    Starts the process represented by this builder.

    Starts the process represented by this builder. The output is returned as a LazyList that blocks when lines are not available but the process has not completed. Standard error is sent to the console. If the process exits with a non-zero value, the LazyList will provide all lines up to termination and then throw an exception.

19.  abstract def lazyLines_!(log: ProcessLogger, capacity: Integer): LazyList[String]

    Starts the process represented by this builder.

    Starts the process represented by this builder. The output is returned as a LazyList that blocks when lines are not available but the process has not completed. The producer process will block if the given capacity of lines if filled without being consumed from the stream. Standard error is sent to the provided ProcessLogger. If the process exits with a non-zero value, the LazyList will provide all lines up to termination but will not throw an exception.

20.  abstract def lazyLines_!(log: ProcessLogger): LazyList[String]

    Starts the process represented by this builder.

    Starts the process represented by this builder. The output is returned as a LazyList that blocks when lines are not available but the process has not completed. Standard error is sent to the provided ProcessLogger. If the process exits with a non-zero value, the LazyList will provide all lines up to termination but will not throw an exception.

21.  abstract def lazyLines_!(capacity: Integer): LazyList[String]

    Starts the process represented by this builder.

    Starts the process represented by this builder. The output is returned as a LazyList that blocks when lines are not available but the process has not completed. The producer process will block if the given capacity of lines if filled without being consumed from the stream. Standard error is sent to the console. If the process exits with a non-zero value, the LazyList will provide all lines up to termination but will not throw an exception.

22.  abstract def lazyLines_!: LazyList[String]

    Starts the process represented by this builder.

    Starts the process represented by this builder. The output is returned as a LazyList that blocks when lines are not available but the process has not completed. Standard error is sent to the console. If the process exits with a non-zero value, the LazyList will provide all lines up to termination but will not throw an exception.

23.  abstract def run(log: ProcessLogger, connectInput: Boolean): Process

    Starts the process represented by this builder.

    Starts the process represented by this builder. Standard output and error are sent to the given ProcessLogger. The newly started process reads from standard input of the current process if `connectInput` is true.

24.  abstract def run(connectInput: Boolean): Process

    Starts the process represented by this builder.

    Starts the process represented by this builder. Standard output and error are sent to the console. The newly started process reads from standard input of the current process if `connectInput` is true.

25.  abstract def run(io: ProcessIO): Process

    Starts the process represented by this builder.

    Starts the process represented by this builder. I/O is handled by the given ProcessIO instance.

26.  abstract def run(log: ProcessLogger): Process

    Starts the process represented by this builder.

    Starts the process represented by this builder. Standard output and error are sent to the given ProcessLogger.

27.  abstract def run(): Process

    Starts the process represented by this builder.

    Starts the process represented by this builder. Standard output and error are sent to the console.

28.  abstract def toSink: ProcessBuilder
    Attributes
      protected
    Definition Classes
      Sink
29.  abstract def toSource: ProcessBuilder
    Attributes
      protected
    Definition Classes
      Source
30.  abstract def lineStream(log: ProcessLogger, capacity: Integer): Stream[String]

    Starts the process represented by this builder.

    Starts the process represented by this builder. The output is returned as a Stream that blocks when lines are not available but the process has not completed. The producer process will block if the given capacity of lines if filled without being consumed from the stream. Standard error is sent to the provided ProcessLogger. If the process exits with a non-zero value, the Stream will provide all lines up to termination and then throw an exception.

    Annotations
      @deprecated
    Deprecated

      (Since version 2.13.0) use lazyLines

31.  abstract def lineStream(log: ProcessLogger): Stream[String]

    Starts the process represented by this builder.

    Starts the process represented by this builder. The output is returned as a Stream that blocks when lines are not available but the process has not completed. Standard error is sent to the provided ProcessLogger. If the process exits with a non-zero value, the Stream will provide all lines up to termination and then throw an exception.

    Annotations
      @deprecated
    Deprecated

      (Since version 2.13.0) use lazyLines

32.  abstract def lineStream(capacity: Integer): Stream[String]

    Starts the process represented by this builder.

    Starts the process represented by this builder. The output is returned as a Stream that blocks when lines are not available but the process has not completed. The producer process will block if the given capacity of lines if filled without being consumed from the stream. Standard error is sent to the console. If the process exits with a non-zero value, the Stream will provide all lines up to termination and then throw an exception.

    Annotations
      @deprecated
    Deprecated

      (Since version 2.13.0) use lazyLines

33.  abstract def lineStream: Stream[String]

    Starts the process represented by this builder.

    Starts the process represented by this builder. The output is returned as a Stream that blocks when lines are not available but the process has not completed. Standard error is sent to the console. If the process exits with a non-zero value, the Stream will provide all lines up to termination and then throw an exception.

    Annotations
      @deprecated
    Deprecated

      (Since version 2.13.0) use lazyLines

34.  abstract def lineStream_!(log: ProcessLogger, capacity: Integer): Stream[String]

    Starts the process represented by this builder.

    Starts the process represented by this builder. The output is returned as a Stream that blocks when lines are not available but the process has not completed. The producer process will block if the given capacity of lines if filled without being consumed from the stream. Standard error is sent to the provided ProcessLogger. If the process exits with a non-zero value, the Stream will provide all lines up to termination but will not throw an exception.

    Annotations
      @deprecated
    Deprecated

      (Since version 2.13.0) use lazyLines_!

35.  abstract def lineStream_!(log: ProcessLogger): Stream[String]

    Starts the process represented by this builder.

    Starts the process represented by this builder. The output is returned as a Stream that blocks when lines are not available but the process has not completed. Standard error is sent to the provided ProcessLogger. If the process exits with a non-zero value, the Stream will provide all lines up to termination but will not throw an exception.

    Annotations
      @deprecated
    Deprecated

      (Since version 2.13.0) use lazyLines_!

36.  abstract def lineStream_!(capacity: Integer): Stream[String]

    Starts the process represented by this builder.

    Starts the process represented by this builder. The output is returned as a Stream that blocks when lines are not available but the process has not completed. The producer process will block if the given capacity of lines if filled without being consumed from the stream. Standard error is sent to the console. If the process exits with a non-zero value, the Stream will provide all lines up to termination but will not throw an exception.

    Annotations
      @deprecated
    Deprecated

      (Since version 2.13.0) use lazyLines_!

37.  abstract def lineStream_!: Stream[String]

    Starts the process represented by this builder.

    Starts the process represented by this builder. The output is returned as a Stream that blocks when lines are not available but the process has not completed. Standard error is sent to the console. If the process exits with a non-zero value, the Stream will provide all lines up to termination but will not throw an exception.

    Annotations
      @deprecated
    Deprecated

      (Since version 2.13.0) use lazyLines_!

### Concrete Value Members

1.  final def !=(arg0: Any): Boolean

   Test two objects for inequality.

   Test two objects for inequality.

   returns

     `true` if !(this == that), false otherwise.

   Definition Classes
     AnyRef → Any
2.  final def ##: Int

   Equivalent to `x.hashCode` except for boxed numeric types and `null`.

   Equivalent to `x.hashCode` except for boxed numeric types and `null`. For numerics, it returns a hash value which is consistent with value equality: if two value type instances compare as true, then ## will produce the same hash value for each of them. For `null` returns a hashcode where `null.hashCode` throws a `NullPointerException`.

   returns

     a hash value consistent with ==

   Definition Classes
     AnyRef → Any
3.  def #<(b: ProcessBuilder): ProcessBuilder

   Reads the output of a scala.sys.process.ProcessBuilder into the input stream of this process.

   Reads the output of a scala.sys.process.ProcessBuilder into the input stream of this process.

   Definition Classes
     Sink
4.  def #<(in: => InputStream): ProcessBuilder

   Reads the given InputStream into the input stream of this process.

   Reads the given InputStream into the input stream of this process. The argument is call-by-name, so the stream is recreated, read, and closed each time this process is executed.

   Definition Classes
     Sink
5.  def #<(f: URL): ProcessBuilder

   Reads the given URL into the input stream of this process.

   Reads the given URL into the input stream of this process.

   Definition Classes
     Sink
6.  def #<(f: File): ProcessBuilder

   Reads the given file into the input stream of this process.

   Reads the given file into the input stream of this process.

   Definition Classes
     Sink
7.  def #>(b: ProcessBuilder): ProcessBuilder

   Writes the output stream of this process to a scala.sys.process.ProcessBuilder.

   Writes the output stream of this process to a scala.sys.process.ProcessBuilder.

   Definition Classes
     Source
8.  def #>(out: => OutputStream): ProcessBuilder

   Writes the output stream of this process to the given OutputStream.

   Writes the output stream of this process to the given OutputStream. The argument is call-by-name, so the stream is recreated, written, and closed each time this process is executed.

   Definition Classes
     Source
9.  def #>(f: File): ProcessBuilder

   Writes the output stream of this process to the given file.

   Writes the output stream of this process to the given file.

   Definition Classes
     Source
10.  def #>>(f: File): ProcessBuilder

    Appends the output stream of this process to the given file.

    Appends the output stream of this process to the given file.

    Definition Classes
      Source
11.  def +(other: String): String
    Implicit
      This member is added by an implicit conversion from ProcessBuilder toany2stringadd[ProcessBuilder] performed by method any2stringadd in scala.Predef.
    Definition Classes
      any2stringadd
12.  def ->[B](y: B): (ProcessBuilder, B)
    Implicit
      This member is added by an implicit conversion from ProcessBuilder toArrowAssoc[ProcessBuilder] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
      ArrowAssoc
    Annotations
      @inline()
13.  final def ==(arg0: Any): Boolean

    The expression `x == that` is equivalent to `if (x eq null) that eq null else x.equals(that)`.

    The expression `x == that` is equivalent to `if (x eq null) that eq null else x.equals(that)`.

    returns

      `true` if the receiver object is equivalent to the argument; `false` otherwise.

    Definition Classes
      AnyRef → Any
14.  final def asInstanceOf[T0]: T0

    Forces the compiler to treat the receiver object as having type `T0`, even though doing so may violate type safety.

    Forces the compiler to treat the receiver object as having type `T0`, even though doing so may violate type safety.

    This method is useful when you believe you have type information the compiler doesn't, and it also isn't possible to check the type at runtime. In such situations, skipping type safety is the only option.

    It is platform dependent whether `asInstanceOf` has any effect at runtime. It might do a runtime type test on the erasure of `T0`, insert a conversion (such as boxing/unboxing), fill in a default value, or do nothing at all.

    In particular, `asInstanceOf` is not a type test. It does **not** mean:

        this match {
         case x: T0 => x
         case _     => throw ClassCastException("...")

    Use pattern matching or isInstanceOf for type testing instead.

    Situations where `asInstanceOf` is useful:

    - when flow analysis fails to deduce `T0` automatically
    - when down-casting a type parameter or an abstract type member (which cannot be checked at runtime due to type erasure) If there is any doubt and you are able to type test instead, you should do so.

    Be careful of using `asInstanceOf` when `T0` is a primitive type. When `T0` is primitive, `asInstanceOf` may insert a conversion instead of a type test. If your intent is to convert, use a `toT` method (`x.toChar`, `x.toByte`, etc.).

    returns

      the receiver object.

    Definition Classes
      Any
    Exceptions thrown

      `ClassCastException` if the receiver is not an instance of the erasure of `T0`, if that can be checked on this platform

15.  def cat: ProcessBuilder

    Returns a scala.sys.process.ProcessBuilder representing this `Source`.

    Returns a scala.sys.process.ProcessBuilder representing this `Source`.

    Definition Classes
      Source
16.  def clone(): AnyRef

    Create a copy of the receiver object.

    Create a copy of the receiver object.

    The default implementation of the `clone` method is platform dependent.

    returns

      a copy of the receiver object.

    Attributes
      protected[lang]
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.CloneNotSupportedException]) @native()
    Note

      not specified by SLS as a member of AnyRef

17.  def ensuring(cond: (ProcessBuilder) => Boolean, msg: => Any): ProcessBuilder
    Implicit
      This member is added by an implicit conversion from ProcessBuilder toEnsuring[ProcessBuilder] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
18.  def ensuring(cond: (ProcessBuilder) => Boolean): ProcessBuilder
    Implicit
      This member is added by an implicit conversion from ProcessBuilder toEnsuring[ProcessBuilder] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
19.  def ensuring(cond: Boolean, msg: => Any): ProcessBuilder
    Implicit
      This member is added by an implicit conversion from ProcessBuilder toEnsuring[ProcessBuilder] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
20.  def ensuring(cond: Boolean): ProcessBuilder
    Implicit
      This member is added by an implicit conversion from ProcessBuilder toEnsuring[ProcessBuilder] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
21.  final def eq(arg0: AnyRef): Boolean

    Tests whether the argument (`that`) is a reference to the receiver object (`this`).

    Tests whether the argument (`that`) is a reference to the receiver object (`this`).

    The `eq` method implements an equivalence relation on non-null instances of `AnyRef`, and has three additional properties:

    - It is consistent: for any non-null instances `x` and `y` of type `AnyRef`, multiple invocations of `x.eq(y)` consistently returns `true` or consistently returns `false`.
    - For any non-null instance `x` of type `AnyRef`, `x.eq(null)` and `null.eq(x)` returns `false`.
    - `null.eq(null)` returns `true`.

    When overriding the `equals` or `hashCode` methods, it is important to ensure that their behavior is consistent with reference equality. Therefore, if two objects are references to each other (`o1 eq o2`), they should be equal to each other (`o1 == o2`) and they should hash to the same value (`o1.hashCode == o2.hashCode`).

    returns

      `true` if the argument is a reference to the receiver object; `false` otherwise.

    Definition Classes
      AnyRef
22.  def equals(arg0: AnyRef): Boolean

    The equality method for reference types.

    The equality method for reference types. Default implementation delegates to `eq`.

    See also `equals` in scala.Any.

    returns

      `true` if the receiver object is equivalent to the argument; `false` otherwise.

    Definition Classes
      AnyRef → Any
23.  def finalize(): Unit

    Called by the garbage collector on the receiver object when there are no more references to the object.

    Called by the garbage collector on the receiver object when there are no more references to the object.

    The details of when and if the `finalize` method is invoked, as well as the interaction between `finalize` and non-local returns and exceptions, are all platform dependent.

    Attributes
      protected[lang]
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.Throwable])
    Note

      not specified by SLS as a member of AnyRef

24.  final def getClass(): Class[_ <: AnyRef]

    Returns the runtime class representation of the object.

    Returns the runtime class representation of the object.

    returns

      a class object corresponding to the runtime type of the receiver.

    Definition Classes
      AnyRef → Any
    Annotations
      @native()
25.  def hashCode(): Int

    The hashCode method for reference types.

    The hashCode method for reference types. See hashCode in scala.Any.

    returns

      the hash code value for this object.

    Definition Classes
      AnyRef → Any
    Annotations
      @native()
26.  final def isInstanceOf[T0]: Boolean

    Test whether the dynamic type of the receiver object has the same erasure as `T0`.

    Test whether the dynamic type of the receiver object has the same erasure as `T0`.

    Depending on what `T0` is, the test is done in one of the below ways:

    - `T0` is a non-parameterized class type, e.g. `BigDecimal`: this method returns `true` if the value of the receiver object is a `BigDecimal` or a subtype of `BigDecimal`.
    - `T0` is a parameterized class type, e.g. `List[Int]`: this method returns `true` if the value of the receiver object is some `List[X]` for any `X`. For example, `List(1, 2, 3).isInstanceOf[List[String]]` will return true.
    - `T0` is some singleton type `x.type` or literal `x`: this method returns `this.eq(x)`. For example, `x.isInstanceOf[1]` is equivalent to `x.eq(1)`
    - `T0` is an intersection `X with Y` or `X & Y: this method is equivalent to` x.isInstanceOf[X] && x.isInstanceOf[Y]``
    - `T0` is a union `X | Y`: this method is equivalent to `x.isInstanceOf[X] || x.isInstanceOf[Y]`
    - `T0` is a type parameter or an abstract type member: this method is equivalent to `isInstanceOf[U]` where `U` is `T0`'s upper bound, `Any` if `T0` is unbounded. For example, `x.isInstanceOf[A]` where `A` is an unbounded type parameter will return true for any value of `x`.

    This is exactly equivalent to the type pattern `_: T0`

    returns

      `true` if the receiver object is an instance of erasure of type `T0`; `false` otherwise.

    Definition Classes
      Any
    Note

      due to the unexpectedness of `List(1, 2, 3).isInstanceOf[List[String]]` returning true and `x.isInstanceOf[A]` where `A` is a type parameter or abstract member returning true, these forms issue a warning.

27.  final def ne(arg0: AnyRef): Boolean

    Equivalent to `!(this eq that)`.

    Equivalent to `!(this eq that)`.

    returns

      `true` if the argument is not a reference to the receiver object; `false` otherwise.

    Definition Classes
      AnyRef
28.  final def notify(): Unit

    Wakes up a single thread that is waiting on the receiver object's monitor.

    Wakes up a single thread that is waiting on the receiver object's monitor.

    Definition Classes
      AnyRef
    Annotations
      @native()
    Note

      not specified by SLS as a member of AnyRef

29.  final def notifyAll(): Unit

    Wakes up all threads that are waiting on the receiver object's monitor.

    Wakes up all threads that are waiting on the receiver object's monitor.

    Definition Classes
      AnyRef
    Annotations
      @native()
    Note

      not specified by SLS as a member of AnyRef

30.  final def synchronized[T0](arg0: => T0): T0

    Executes the code in `body` with an exclusive lock on `this`.

    Executes the code in `body` with an exclusive lock on `this`.

    returns

      the result of `body`

    Definition Classes
      AnyRef
31.  def toString(): String

    Creates a String representation of this object.

    Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.

    returns

      a String representation of the object.

    Definition Classes
      AnyRef → Any
32.  final def wait(): Unit

    See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait--.

    See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait--.

    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException])
    Note

      not specified by SLS as a member of AnyRef

33.  final def wait(arg0: Long, arg1: Int): Unit

    See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-int-

    See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-int-

    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException])
    Note

      not specified by SLS as a member of AnyRef

34.  final def wait(arg0: Long): Unit

    See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-.

    See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-.

    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException]) @native()
    Note

      not specified by SLS as a member of AnyRef

### Deprecated Value Members

1.  def formatted(fmtstr: String): String

   Returns string formatted according to given `format` string.

   Returns string formatted according to given `format` string. Format strings are as for `String.format` (@see java.lang.String.format).

   Implicit
     This member is added by an implicit conversion from ProcessBuilder toStringFormat[ProcessBuilder] performed by method StringFormat in scala.Predef.
   Definition Classes
     StringFormat
   Annotations
     @deprecated @inline()
   Deprecated

     (Since version 2.12.16) Use `formatString.format(value)` instead of `value.formatted(formatString)`, or use the `f""` string interpolator. In Java 15 and later, `formatted` resolves to the new method in String which has reversed parameters.

2.  def →[B](y: B): (ProcessBuilder, B)
   Implicit
     This member is added by an implicit conversion from ProcessBuilder toArrowAssoc[ProcessBuilder] performed by method ArrowAssoc in scala.Predef.
   Definition Classes
     ArrowAssoc
   Annotations
     @deprecated
   Deprecated

     (Since version 2.13.0) Use `->` instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.

### Inherited from Sink

### Inherited from Source

### Inherited from AnyRef

### Inherited from Any

### Inherited by implicit conversion any2stringadd fromProcessBuilder to any2stringadd[ProcessBuilder]

### Inherited by implicit conversion StringFormat fromProcessBuilder to StringFormat[ProcessBuilder]

### Inherited by implicit conversion Ensuring fromProcessBuilder to Ensuring[ProcessBuilder]

### Inherited by implicit conversion ArrowAssoc fromProcessBuilder to ArrowAssoc[ProcessBuilder]

### Ungrouped