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Creating A Linux Shell Script With Variable With User Input Form Prompt To Enter Data

Posted On Thu May 03, 2007 By linux In Linux Shell Programming Forums And Topics Discussions Forums

creating a variable wit user input

at the command line, we can create variables explicityly by telling the shell the name of the variable and the value of assign. to do this, just follow these steps on my tutorial for you to learn how to program in linux

1. run these commands

a=1650
echo $a

the sh family of shells also creates variables with input read from the user.

2. enter this command

read xxx

No prompt is displayed but the shell is waiting for input from you

3. enter this command

Wallpaperama

4. enter this command

echo $xxx

a new variable named xx is created with a value of Wallpaperama. in this example, the shell interprets the read command as instruction to create a new variable using the argument to read as the new rabiable's name, and then to assign the varaible the value of wahtever the user types in until the next enter. the same procedure can be used tom odify the value of an exisitng variable

5. enter this command

read xxx

6. enter this

Get Free Wallpapers at Wallpaperama

7. enter this command

echo $xxx

the shell interprest the argument to the read command as the name of a variable and interprets whatever the user types until the next ENTER as the value ot assing to the variable. if the variable exits, its value is modigfied. if the variable does not exists, the shell crates it. a varable consisting of many words is acceptable. I am familiar with php, if you are also familiar in programming with php and HTML, think of read as a web form where you ask for user input, on the form itself, you use variables to declare user input. same here with the read utility in linux.

CyTG Sat Mar 13, 2010

Spent ~5 minutes searching for a way to input values for the variables using the prompt (but not as an input argument)...and then I ran into this post...the title says it all - "creating a linux shell script with variable with user input form prompt to enter data"

So, THANKS A LOT!

Januka Fri Jan 29, 2010

I was looking for a simple answer for a rather new question (to me) and this page hit the nail on the head. THANKS!

unix Fri Jan 16, 2009

you are amazing in teaching us about creating a shell script. mine works i have red hat fedora linux so its simlar to unix and i followed your steps and they helped me with creating a bash script in a linux bash script. i will like to show you a script in unix ksh on line bash sed programm to run this tutorial and many other tutorials to learn the faq of pbash and csh and csh and ksh sed bash tutorial with ftp. i also want to know how to show the date using a if for loop because if there is a loop for loop in bash tutorial will export and then exit the tutorial with the loops of for now if if the if perl is installed then you can use bash and awk or grep to find a file and then execute expect if for loop find ftp tutorial programm programm run nline variable software learn example echo variables tutorial history date cron read line directory strtrainfile ssh redhat line functions user tutorials function array line rename operatsystem redhat certification perl server redhat red hat books trainsoftware book server telnet rename multiple files howto support administration ssh help dedicated server download mandrake certification tutorial pdf os damn small review if you any any reviews you can give me that would also be helpful i just want to be able to show you how you can do this so as soon as i learn all that i will post here and show you how you can do this because this is a great start to learning unix. but i must say its very hard to learn and memorize all the commands i think thats what makes learing linux so much harder

che Mon May 26, 2008

very good.. thanks a lot for the post

kila Mon May 14, 2007

can you pls list the command for me to prompt the user to enter name

gaurav Thu Nov 22, 2012

sir, i want to take input from user using a gui interface like input box and want to store it in variables, but i am unable to do it. can you tell me how can i do it..

Thanks
Regards
Gaurav Garg
tipswell dot com

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Creating A Linux Shell Script With Variable With User Input Form Prompt To Enter Data

Title: Creating A Linux Shell Script With Variable With User Input Form Prompt To Enter Data

Description: Creating A Linux Shell Script With Variable With User Input Form Prompt To Enter Data

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Date: Thu May 03, 2007
Author linux Received 6 Replies #1364

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Creating A Linux Shell Script With Variable With User Input Form Prompt To Enter Data

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