#include #include #include int system(const char *cmdstring) /* version without signal handling */ { pid_t pid; int status;…
EXECL 源代码
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/* This code, useupper.c, accepts a file name as an argument and will respond with an error if called incorrectly. */ #incl…
#include #include #include "ourhdr.h" int main(void) { pid_t pid; if ( (pid = fork()) < 0) …
#include #include #include #include int system(const char *cmdstring) /* version without signal handling…
#include #include #include int main() { if(fork()==0){ if(execl("/bin/ps","ps","-ef",NULL)
/*****************************************************************************/ /*作者:王伟*/ /*班级:自42*/ /*学号:2004011443*/ /*程序功能:…
/* This code, useupper.c, accepts a file name as an argument and will respond with an error if called incorrectly. */ #incl…
/* This code, useupper.c, accepts a file name as an argument and will respond with an error if called incorrectly. */ #incl…
/*execl.c*/ #include #include #include int main() { if(fork()==0){ /*调用execl函数,注意这里要给出ps程序所在的完整路径*/ if(execl("/bin…
#include "apue.h" #include int main(void) { pid_t pid; if ((pid = fork()) < 0) { err_sys("fork error"); } else if (pid == …