|Linux / Unix Command: on_exit|
NAMEon_exit - register a function to be called at normal program termination.
#include <stdlib.h> int on_exit(void (*function)(int , void *), void *arg);
DESCRIPTIONThe on_exit() function registers the given function to be called at normal program termination, whether via exit(3) or via return from the program's main. The function is passed the argument to exit(3) and the arg argument from on_exit().
RETURN VALUEThe on_exit() function returns the value 0 if successful; otherwise it returns a non-zero value.
CONFORMING TOThis function comes from SunOS, but is also present in libc4, libc5 and glibc.
SEE ALSOatexit(3), exit(3)
Important: Use the man command (% man) to see how a command is used on your particular computer.