Unix |
Unix v7 |
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system(3) |
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system − issue a shell command
system(string)
char *string;
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.
popen(3), exec(2), wait(2)
Exit status 127 indicates the shell couldn’t be executed.
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system(3) | ![]() |