Quick Question with Scripting

[Cmiller21]

Hi,

So I've recently been experimenting with the case command. I know how to use it, but I'd like some help figuring out something. I wrote this script shown below

Code: Select all

#!/bin/bash

echo "What is your name?"
read myname
echo "Hi $myname"

echo "Would you like to continue running this script? Yes or no?"

read answer

case $answer in
	yes) echo "Okay, let's continue.";;
	no) echo "Okay, terminating script now."
		exit 0;;
	*) echo "The answer you typed is not valid, please type yes or no.";;
esac

So the script would either continue or terminate depending on whether the user entered yes or no. But if user doesn't enter yes or no I would like the script restart the case command until the user types in either yes or no. The problem is I do not know what command to use for that to happen. Could someone help me?

~Cmiller21

[Habitual]

But if user doesn't enter yes or no I would like the script restart the case command until the user types in either yes or no.

Why restart anything? It will just sit there waiting. No need to restart.

http://mywiki.wooledge.org/BashGuide/Te ... nditionals
for some tips.

[Cmiller21]

Habitual,

thanks for the link you gave me. Based on what I read there, I changed my script, and it works! If anyone is curious this is my new script:

Code: Select all

#!/bin/bash

echo "What is your name?"
read myname
echo "Hi $myname"

echo "Would you like to continue running this script?"

select choice in yes no; 
do
if [[ $choice = yes ]]
	then echo "Okay, let's continue."; break;
elif [[ $choice = no ]]
	then echo "Okay, terminating script now."
	exit 0;
fi
done

I didn't get a chance to read all of the article, but I'll make sure to study on it soon. Thanks again!

~Cmiller

[Habitual]

Here's another fine example:
http://www.noah.org/wiki/Bash_notes#get ... _from_user

and some references for your "toolkit":
Various Linux Guides I have collected:
http://www.tldp.org/HOWTO/Bash-Prog-Intro-HOWTO.html
http://www.tldp.org/LDP/Bash-Beginners- ... index.html
http://tldp.org/HOWTO/Bash-Prompt-HOWTO/
http://www.gnu.org/software/bash/manual ... index.html
http://www.grymoire.com/Unix/Sh.html
http://www.grymoire.com/Unix/Sed.html
http://tldp.org/LDP/abs/abs-guide.pdf
http://www.tldp.org/LDP/abs/html/
http://mywiki.wooledge.org/BashFAQ
http://mywiki.wooledge.org/BashPitfalls
http://rute.2038bug.com/index.html.gz
http://mylinuxbook.com/linux-shell-environment/
http://www.subsignal.org/doc/AliensBash ... 20Contents
http://www.rigacci.org/docs/biblio/offl ... -09.12.pdf
http://www.linuxhomenetworking.com/
http://mylinuxbook.com/bash-shell-scripting-part-i/
http://mylinuxbook.com/bash-shell-scripting-2/
https://help.ubuntu.com/community/CommandLineResources
http://linuxcommand.org/lc3_learning_the_shell.php
http://unixhelp.ed.ac.uk/
http://www.linuxquestions.org/questions ... nks-35334/
http://www.linuxquestions.org/questions ... 175433508/
http://www.hammondslegacy.com/forum/vie ... 86cafdf486
http://linux-shell-commands.jimdo.com/
http://flossmanuals.net/command-line
http://tille.garrels.be/training/tldp/
http://www.collegeathome.com/blog/2008/ ... resources/
http://www.codecoffee.com/tipsforlinux/index-linux.html

[Cmiller21]

WOW! Thanks! Appreciate it big time, man. And I really mean it . I'll be bookmarking these shortly.

~Cmiller

[Habitual]

You're very welcome.

Here's a custom Google search engine I put together to search 44 Linux-specific sites for coding goodness...