linux中怎么判斷當(dāng)前用戶是否是root

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linux 中，如何判斷當(dāng)前用戶是否是root 呢？
判斷當(dāng)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(dāng)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(jìn)行理解。如果想知道更多相關(guān)知識(shí)，歡迎關(guān)注億速云行業(yè)資訊頻道。