


      SYSTEM(3S)                  (UNIX 5.0)                 SYSTEM(3S)



      NAME
           system - issue a shell command

      SYNTAX
           #include <stdio.h>

           int system (string)
           char *string;

      DESCRIPTION
           System causes the string to be given to sh(1) as input, as
           if the string had been typed as a command at a terminal.
           The current process waits until the shell has completed,
           then returns the exit status of the shell.

      FILES
           /bin/sh

      SEE ALSO
           sh(1), exec(2).

      DIAGNOSTICS
           System forks to create a child process that in turn exec's
           /bin/sh in order to execute string.  If the fork or exec
           fails, system returns -1 and sets errno.






























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