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 CX/UX 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. 

CX/UX Programmer’s Reference Manual