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

Vbs, Add macros to MS word 2010 according to A PARTICULAR FORMAT

Add macros to MS word 2010 according to A PARTICULAR FORMAT

Document type definition schema, Create a DTD which describes the structure...

Create a DTD which describes the structure of the document which you prepared in Question 1. Make sure that you use all appropriate DTD ingredients to constrain valid documents as

Programs for shell scripts, 1. Write a bash shell script which searches thr...

1. Write a bash shell script which searches through your folders for files with the extension *.tex, and then interactively deletes the corresponding *.aux, *.dvi and *.log files (

Shell script to count characters, Normal 0 false false fals...

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

Java project, NOTE: You will only submit the University.java and EmptyFileE...

NOTE: You will only submit the University.java and EmptyFileException.java files (inside P3.zip/tar) NOTE on null objects:. From Project 1: Since the array of students in the Cou

Help with c assignment, You will design and implement a program that will •...

You will design and implement a program that will • analyse the various characteristics of a maze, represented by a particular coding of its basic con- stituents into numbers store

Version control system, Version Control is a critical tool in development a...

Version Control is a critical tool in development and production environments that allows a user to make snapshots of working con?gurations or code. In this assignment, you will de

Urgently need help with Javascript, Really urgent help needed with Javascri...

Really urgent help needed with Javascript. I have this website: I">https://www.theppcpresents.com/globe13/#/home I need to remove the video on the slider so that it only sho

Assembly language, I need help with having a user input a year, and my prog...

I need help with having a user input a year, and my program to spit out what day of the week Christmas is on.... any helping hands on this?

Use a procedure to integrate cube, Simpson's Rule is a more accurate method...

Simpson's Rule is a more accurate method of numerical integration than the method described in class. Using Simpson's Rule, the integral of a function f between a and b is approxim

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