BUILT-IN WOLFRAM LANGUAGE SYMBOL
executes an external program, passing it the specified arguments .
- StartProcess returns a ProcessObject if the process it specifies can be started; otherwise, it returns $Failed.
- StartProcess can be used to interact with processes while they are running or to run "background tasks" without blocking the Wolfram Engine.
- StartProcess returns immediately and does not wait for the started process to complete. Use RunProcess to wait for a process to complete.
- In , the are converted to strings using ToString.
- The Wolfram Engine can communicate with a subprocess represented by a ProcessObject with functions like WriteLine, WriteString, BinaryWrite, ReadLine, ReadString, and BinaryRead.
- The standard input, output, and error streams can be represented using ProcessConnection.
- Information about the subprocess can be queried using ProcessStatus and ProcessInformation.
- The following options can be given:
|ProcessDirectory||Inherited||initial working directory |
|ProcessEnvironment||Inherited||environment variables to give the subprocess|
- By default, the subprocess will inherit its process directory and environment variables from the Wolfram Engine.
- If the Wolfram Engine is terminated, the subprocess will be forced to close.
- If any of the arguments are of the form "name"->value, they will be converted into the form . If name is a single character, only one dash will be used.
Start the system shell process:
Write a command into the system shell process:
Read the command output:
Check whether the process is running or not:
Write an exit command into the shell process:
Verify the program has actually finished:
Introduced in 2014