Shell script to check whether user has logged in or not, Programming Languages

Assignment Help:

W.A.S.S to check whether user has logged in or not.

Program

# W.A.S.S to check whether user has logged in or not.

echo "Enter the user name:"

read usr

flag=0

for w in ` who | tr -s " " | cut -d " " -f1`

if test $usr = $w

then

echo "User is logged in.."

flag=1

done

if test $flag = 0

then

echo "User is Not logged in.."

Output:

Enter the user name:

root

User is logged in..

Enter the user name:

narenda

User is Not logged in

Related Discussions:- Shell script to check whether user has logged in or not

Python, Software and sales assingment I keep get a syntax error

Software and sales assingment I keep get a syntax error

I got a project and i need help , the details on the two pictures on the li...

the details on the two pictures on the link below : http://rak-up.com/up/files/18637.jpg ">http://rak-up.com/up/files/18636.jpg http://rak-up.com/up/files/18637.jpg

Hack winrar password, how to make a program using vb?seriously i don''t kno...

how to make a program using vb?seriously i don''t know

Need support in mobile app using angularjs and cordova, Need support in Mob...

Need support in Mobile app using AngularJS, Cordova (PhoneGap), Ionicframework We need an experienced front-end developer with a obsession for performance in mobile environment.

Write a prolog predicate has duplicates, Write a Prolog predicate has_dupli...

Write a Prolog predicate has_duplicates(L) that is true if list L contains duplicated elements (that is at least 2 copies of an element). For instance: ?- has_duplicates([a,e,b,

Implement a two-dimensional table in prolog, Implement a two-dimensional ta...

Implement a two-dimensional table in Prolog. Your program will contain: An insert_entry predicate that takes a table, row, column and an entry and inserts the entry at the g

Shell script to change the permission of a file, Normal 0 false...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

C programming, write a function that raises an integer to a positive intege...

write a function that raises an integer to a positive integer power. call the function x_to_the_n taking two integer arguments x and n. have the function return a long int, which r

Program for tube challenge route, 1. Introduction The Tube Challenge is ...

1. Introduction The Tube Challenge is a Guinness World Records challenge that tests both the physical and mental abilities of the person trying to break it. The main components

Define remote procedure call, Problem: (i) Define Remote Procedure Cal...

Problem: (i) Define Remote Procedure Call (RPC). (ii) Explain with diagram how RPC works? (iii) A remote procedure is uniquely defined by (a) Program number. (b)

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages