Linux exec函數族

 

extern char **environ;

 

int execl(const char* fullpath, const char* arg, ...); 

int execlp(const char* file, const char* arg, ...); 

int execle(const char* fullpath, const char* arg , ..., char* const envp[]); 

int execv(const char* fullpath, char* const argv[]); 

int execvp(const char* file, char* const argv[]);  

int execve(const char* fullpath, const char* arg[] , char* const envp[]);

 

int execl(const char* fullpath, const char* arg, ....)

使用範例：execl(“/bin/ls”, ”ls”, ”-al”, NULL)

 

int execlp(const char* file, const char* arg, ....)

使用範例：execlp(“ls”, ”ls”, ”-al”, NULL)

 

int execle(const char* fullpath, const char* arg, ...., char* const envp[])

使用範例：execle(“/bin/ls”, ”ls”, ”-al”, NULL, environ)

 

int execv(const char * fullpath, char* const argv[])

使用範例：execle(“/bin/mkdir”, argv)  // int main(int argc, char* argv[])

或

char* const p[] = {"a.out", "testDir", NULL};

execv("/bin/mkdir", p);

 

int execvp(const char* file, const char* arg, ....)

使用範例：execlp(“ls”, argv)  // int main(int argc, char* argv[])

或

char* const p[] = {"a.out", "testDir", NULL};

execvp("mkdir", p);

 

int execve(const char* fullpath, const char* arg, ...., char* const envp[])

使用範例：execve(“/bin/ls”, argv, environ)

或

char* const p[] = {"a.out", "testDir", NULL};

execve("/bin/mkdir", p);