rootpass.sh

#!/bin/bash
#-----------------<jihongrui@outlook.com>-----------------------
# 設(shè)置 ROOT 密碼為空 and 恢復(fù) ROOT 密碼
PTAH="/sbin:/usr/sbin:/usr/local/sbin:/bin:/usr/bin:/usr/local/bin"
export PTAH

File="/etc/shadow"
bakFile="/etc/shadow.bak"
T1=`lsattr ${File} |grep '\-i-'|wc -l`

function root_NO_pass(){
cp -af ${File} ${bakFile}

if [[ -f ${bakFile} ]]
then
    sed -i 's#^root.*$#root\:\:16853\:0\:99999\:7\:\:\:#g' ${File}
fi
}

function root_pass(){
if [[ -f ${bakFile} ]]
then
cp -af ${bakFile} ${File} 
fi


}

if [[ ${UID} -ne 0 ]]
then
    echo "USE USER ROOT"
    exit 1
else
    if [[ ${T1} -ne 0 ]]
    then
        chattr -i ${File} 
    fi
fi

case "$1" in
nopass)
    root_NO_pass
;;
pass)
    root_pass
;;
*)
    echo "$0: Usage: $0 {nopass|pass}"
    exit 1
;;
esac