exec*

Syntax

#include <unistd.h> int execl(const char *path, const char *argv0, ...); int execle(const char *path, const char *argv0, ... /*, char *const envp[] */); int execlp(const char *path, const char *argv0, ...); int execlpe(const char *path, const char *argv0, ... /*, char *const envp[] */); int execv(const char *path, char *const argv[]); int execve(const char *path, char *const argv[], char *const envp[]); int execvp(const char *path, char *const argv[]); int execvpe(const char *path, char *const argv[], char *const envp[]);

Description

These functions operate by calling spawn* with a type of P_OVERLAY. Refer to spawn* (see section spawn*) for a full description.

Return Value

If successful, these functions do not return. If there is an error, these functions return -1 and set errno to indicate the error.

Portability

ANSI/ISO C	No
POSIX	1003.2-1992; 1003.1-2001

Example

execlp("gcc", "gcc", "-v", "hello.c", 0);