Linux exec函数族（转载）

http://tuhao.blogbus.com/logs/22833492.html

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[]);

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 用范例：execl(“/bin/ls”, ”ls”, ”-al”, NULL)

int  execlp( const   char * file,  const   char * arg, ....)
使 用范例：execlp(“ls”, ”ls”, ”-al”, NULL)

int  execle( const   char * fullpath,  const   char * arg, ....,  char *  const  envp[])
使 用范例：execle(“/bin/ls”, ”ls”, ”-al”, NULL, environ)

int  execv( const   char  * fullpath,  char *  const  argv[])
使 用范例：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 用范例：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 用范例：execve(“/bin/ls”, argv, environ)
或
char *  const  p[] = { "a.out" ,  "testDir" , NULL};
execve("/bin/mkdir" , p);