user.cc

达内IT培训Unix C++第一天源码 是入门Unix 下C++编程的好东西

#include <iostream>
using namespace std;
#include <pwd.h>

int main()
{
	int uid;
	char name[20];
	passwd* p=NULL;
	cout << "input name or id:";
	cin >> ws;
	if(cin.peek()>='0'&&cin.peek()<='9'){
		cin >> uid;
		p = getpwuid(uid);
	}
	else{
		cin >> name;
		p = getpwnam(name);
	}
	if(p==NULL)
		cout << "not exist!" << endl;
	else{
		cout << p->pw_name << endl;
		cout << p->pw_uid << endl;
		cout << p->pw_gid << endl;
		cout << p->pw_dir << endl;
		cout << p->pw_shell << endl;
	}
}