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 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

not ANSI, POSIX

Example

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

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