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`

do

if test $usr = $w

then

echo "User is logged in.."

flag=1

fi

done

 

if test $flag = 0

then

            echo "User is Not logged in.."

fi

 

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

Add external style sheet in html code, On a single XHTML page, include the ...

On a single XHTML page, include the following two div container elements in the body. Using an external stylesheet, add style to the div elements such that one div has some overlap

A Simple Distributed Computing Platform , You are asked to develop a replic...

You are asked to develop a replicator (client) that distributes a large job over a number of computers (a server group) on a single switched LAN (our BU04 lab). In this assignment,

Shell script to generate the series 1+x + x2+ x3+….+xn, Normal 0 ...

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

Laplace transforms, There actually isn't all that much to this section. All...

There actually isn't all that much to this section. All we are going to do now is work a quick illustration using Laplace transforms for a 3 rd order differential equation therefo

Explain why the simplifiled knapsack code is not secure, 1- If the order of...

1- If the order of a (mod P) is 3, prove that the order of a+1 is 6. 2- Explain why the "simplifiled knapsack" code is not secure.

Program to find the largest value in an array, 1. Write out a detailed plan...

1. Write out a detailed plan for a program to find the largest value in an array that is smaller than a ceiling C. For example, suppose the array has the values {4, 14, 11, 100, 6}

Irc or internet relay chat application, Programming Project Specification: ...

Programming Project Specification: IRC or Internet Relay Chat is an application that lets multiple users communicate via text messages with each other in common "virtual" rooms.

I have to create three batch files, I have to create a bank atm machine usi...

I have to create a bank atm machine using MS-DOS. I am struggling to create LIST ALL ACCOUNTS ROLL-BACK TRANSACTIONS ACCESS AN ACCOUNT

Asp.net and c#, The method should call getAllCities() and return the index ...

The method should call getAllCities() and return the index of the City that has the shortest (euclidian) distance to the. longitude and latitude passed as parameters

Write a program to perform an arithmetic operation, Write a program (calcul...

Write a program (calculation.ccp) to allow the user to perform an arithmetic operation on the two complex numbers entered.  The user can key in one of the four operations: addition

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd