Shell Programming and Scripting

 sudo /opt/local/bin/new-user 114 ranivarm "Rani Varma(Libo Technical User)" INC00001111

case $steps2skip in
(help)  die "$advanced";;
(password)      steps2skip=124;;
(enable)        steps2skip=123;;
([1-4]*)        ;;
esac
username=${1:?username required: $usage} shift
ticket=$3
descr="$*"

#
# assertions
#
grep -c ${group}  /etc/group >/dev/null ||
        warn "Warning: group $group is not in /etc/group"
grep -c $shell /etc/shells >/dev/null ||
        warn "Warning: shell $shell is not in /etc/shells"
 
warn "Checking accountname ${username:?}"
if [[ $steps2skip = *1* ]]; then
        /bin/logins -xol $username ||
                die "account $username does not exist!"
        /bin/getent passwd ${username} ||
                die "account $username does not exist!"
        eval home=~${username}
else    : step 1: creating /etc/passwd entry
        /bin/getent passwd ${username} &&
                die "account $username already exists!"
        /bin/logins -xol $username