SYSTEM(3S-SysV)     RISC/os Reference Manual      SYSTEM(3S-SysV)



NAME
     system - issue a shell command

SYNOPSIS
     #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
     exec(2).
     sh(1) in the User's Reference Manual.

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 a negative value and sets errno.





























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