linux系统中的列出敏感用户的脚本代码_linux shell

此处的敏感用户是指这个用户属于多个组，或者这个用户属于的组名跟这个用户名不一样

#! /bin/bash
#list user who belong to more than one group
#and list user who belong to the group which isn't the same as the username
#w is whitelist,we will not think user in this whitelist is special or dangerous w=("root" "adm" "games" "operator" "halt" "shutdown" "sync" "daemon" "bin" "operator") function WhiteList()
{
    for i in ${w[@]}
    do
        if [ "$i" == "$1" ];then
            return 1
        fi
    done
    return 0
}
IFS="
" for LINE in `cat /etc/passwd|awk -F: '{print $1}'` do
    WhiteList $LINE;
    #if $? equal 1,means it is in the whitelist     if [ $? -eq 0 ];then
        a=`groups $LINE|awk -F: '{print $2}'`
        b=`echo $a`
        if [ "$b" != "$LINE" ];then
            #echo $LINE             echo `groups $LINE`
        fi
    fi done

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