shell编程高级
userad.sh #!/bin/bashusage() {
echo -e "\033 username"
}
while getopts ":u:" SWITCH ;do
case $SWITCH in
u)
NEWUID=$OPTARG
cut -d: -f3 /etc/passwd | grep "^NEWUID" &> /dev/null && echo "UID exists."&& exit 1
;;
\?)
usage
exit 1
;;
esac
done
NGID=$[`cut -d: -f3 /etc/group | grep -v "65534" |sort -n |tail -1`+1]
NUID=$[`cut -d: -f3 /etc/passwd | grep -v "65534" |sort -n |tail -1`+1]
TODAY=$[`date +"%s"`/86400]
#groupadd
if ! cut -d: -f1 /etc/group |grep $1 &> /dev/null;do
echo "$1:x:$NGID: ">> /etc/group
else
echo "group $1 is already exist";exit 1
fi
#useradd
if ! cut -d: -f1 /etc/passwd |grep $1 &> /dev/null;do
echo "$1:x:${NEWUID:=$NUID}:$NGID::/home/$1:/bin/bash" >> /etc/passwd
echo "$1:!!:$TODAY:0:99999:7:::" >> /etc/shadow
else
echo "user $1 is already exist";exit 1
fi
#home directory
cp -r /etc/skel /home/$1
chown -R $1:$1 /home/$1
chmod -R go=--- /home/$1
页:
[1]