This is documentation for Mathematica 6, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.1)


Run[expr1, expr2, ...]
generates the printed form of the expressions expri, separated by spaces, and runs it as an external operating system command.
  • Run returns an integer which corresponds, when possible, to the exit code for the command returned by the operating system.
  • The command executed by Run cannot usually require interactive input. On most computer systems, it can, however, generate textual output.
  • You can enter the input line !command to execute an external command.
New in 1