Answered: if [ $(id -u) -eq 0 ];then read -p…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

if [ $(id -u) -eq 0 ];then

read -p "enter username:" username

read -s -p "enter password:" password

egrep "^$username"/etc/passwd>/dev/null

if [ $? -eq 0];then

echo "$username exists!"

exit 1

else

pass=$(perl -e 'print crypt($ARVG[0], "password")' $password)

useradd -m -p "$pass" "$username"

[ $/ -eq 0 ] && echo "user has been added to system!" || echo "Failed to add a user!"

else

echo "Only root may add to the system"

exit 2

* recheck the code if this is valid syntax for account management or suggest /do another user account management shell script that runs in unix terminal and please attache the output at the end

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