Shell Script to crate user from old server to new server

Shell Script to crate user from old server to new server.

1) copy /etc/passwd file from old server to new server password.txt in same location where you execute same script

shell script

#!/bin/bash
# Script to add a user to Linux system
# -------------------------------------------------------------------------

groupadd -g 501 amco
#echo "Default Group Amco created"
usernamelist="`cat password.txt | cut -d ":" -f1 `"
#fullname="`cat password.txt |cut -d":" -f5`"
for i in $usernamelist
do
if [ $(id -u) -eq 0 ]; then
        
#    read -p "Enter username : " username
    #read -s -p "Enter password : " password
    username="$i"
    password="123456"
    fullname="`grep -i $username password.txt | cut -d":" -f5`"
    useruid="`grep -i $username password.txt | cut -d":" -f3`"
    egrep -w "^$username" /etc/passwd >/dev/null
    if [ $? -eq 0 ]; then
        echo "$username exists!"
#        exit 1
    else
        pass=$(perl -e 'print crypt($ARGV[0], "password")' $password)
        useradd -m -u "$useruid" -G amco -c "$fullname" -p "$pass" -d /home/$username "$username"
        [ $? -eq 0 ] && echo "User $username has been added to system!" || echo "Failed to add a user $username!"
        #`chage -d 0 $username`   
    fi
else
    echo "Only root may add a user to the system"
    exit 2
fi
done