Run

Run["command"]

runs command as an external operating system command, returning the exit code obtained.

Details

  • For any expression expr, Run[expr] runs the string corresponding to OutputForm[expr] as an external operating system command.
  • Run returns an integer that corresponds, when possible, to the exit code for the command returned by the operating system.
  • In a notebook interface, the command executed by Run cannot take interactive input, and its textual output will not be displayed.
  • In a terminal interface, the command executed by Run can display text and take standard input from the terminal.
  • In a terminal interface, the input line !command will execute an external command.

Examples

open allclose all

Basic Examples  (1)

Create a temporary file:

Insert text into the file; a zero exit code indicates success:

Show the contents of the file:

Delete the temporary file:

Scope  (1)

Create a string template for the command to run:

Create a temporary file for storing the output:

Use TemplateApply to create the command string:

Run the command three times, pausing for three seconds each time:

Show the contents of the file:

Delete the file:

Introduced in 1988
 (1.0)