Perl getgrnam 函式

說明

此函式透過組名查詢組檔案條目。在列表上下文中返回以下內容 ($name, $passwd, $gid, $members)

$members 標量包含屬於該組的登入名（以空格分隔）。在標量上下文中返回組名。有關檢索整個組檔案的效率更高的方法，請參見 getgrent。在 Windows 下，建議使用 Win32API::Net 模組。

語法

以下是此函式的簡單語法 −

getgrnam NAME

返回值

此函式在 scalr 上下文中返回組名，在列表上下文中返回名稱、密碼、組 ID 和成員列表。

示例

以下示例程式碼顯示了基本用法 −

#!/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";
}

執行上述程式碼後，將產生以下結果 −

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  =