无涯教程-Perl - getgrnam函数

描述

此功能通过组名查找组文件条目。在列表context中返回以下内容-($name,$passwd,$gid,$members)

$members标量包含作为组成员的登录名的空格分隔列表。在标量context中返回组名。有关检索整个组文件的更有效方法,请参阅getgrent。在Windows下,请考虑使用Win32API::Net模块。

语法

以下是此函数的简单语法-

getgrnam NAME

返回值

此函数在定标器context中返回"组名",在列表context中返回"名称","密码","组ID"和"成员列表"。

例

以下是显示其基本用法的示例代码-

#!/usr/bin/perl

while( ($name,$passwd,$gid,$members)=getgrent() ) {
   ($name,$passwd,$gid,$members)=getgrnam $name;
   print "Name =$name\n";
   print "Password =$passwd\n";
   print "GID =$gid\n";
   print "Members =$members\n";
}

执行上述代码后,将产生以下输出-

Name =root
Password =x
GID =0
Members =
Name =bin
Password =x
GID =1
Members =
Name =daemon
Password =x
GID =2
Members =
Name =sys
Password =x
GID =3
Members =
Name =adm
Password =x
GID =4
Members =
Name =tty
Password =x
GID =5
Members =
Name =disk
Password =x
GID =6
Members =
.
.
.
.
.
Name =apache
Password =x
GID =48
Members =
Name =rexx
Password =x
GID =1001
Members =
Name =objc
Password =x
GID =1002
Members =

参考链接

https://www.learnfk.com/perl/perl-getgrnam.html