linux中怎么判斷當前用戶是否是root

這期內容當中小編將會給大家帶來有關linux中怎么判斷當前用戶是否是root，文章內容豐富且以專業的角度為大家分析和敘述，閱讀完這篇文章希望大家可以有所收獲。

linux 中，如何判斷當前用戶是否是root 呢？
判斷當前用戶是否是root
代碼如下:

#---------------------------- root user check ---------------------start
if [ `id -u` -ne 0 ]; then
echo "Please re-run ${this_file} as root."
exit 1
fi
#---------------------------- root user check ---------------------end
if [ x"$USER" = x"" ];then
if id |grep "^uid=0(root)">/dev/null ;then
:
else
echo "Please rerun `basename $0` as root ."
exit 1
fi
else
if [ ! x"$USER" = x"root" ];then
echo "Please rerun `basename $0` as root ."
exit 1
fi
fi
#=============== check current user start ================
if [ ! $USER = root ];then
echo "Please rerun this script as root ."
exit 1
fi
#=============== check current user end ================
#!/bin/sh
if id |grep "^uid=0(root)">/dev/null ;then
echo is root
else
echo not root
fi
check_user(){
if [ $UID -ne 0 ];then
echo "Current user is not ROOT."
echo "Please rerun the installer as Root user."
exit 11
fi
}

上述就是小編為大家分享的linux中怎么判斷當前用戶是否是root了，如果剛好有類似的疑惑，不妨參照上述分析進行理解。如果想知道更多相關知識，歡迎關注億速云行業資訊頻道。