Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

Bourne Shell - if someone enters a variable that begins with...

Posted on 2011-02-17
4
Medium Priority
?
255 Views
Last Modified: 2012-05-11
sorry, i know my questions are kind of basic, but i'm hoping you guys can help out

lets say if the user enters something that begins with "BL" but can be anything like BLsdf or BLUE or something..how can i figure this out?  I know it should be something along the lines of "BL"* or something but i'm not sure... if someone can point me in the right direction

i'm really trying to learn here

#!/bin/sh
echo -n "Enter a color: "
read color
if [ $color = bl* ]
then
 echo "blue"
fi

Open in new window

0
Comment
Question by:nocturn4l
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
4 Comments
 
LVL 84

Accepted Solution

by:
ozo earned 2000 total points
ID: 34914910
case $color in
 bl* ) echo "blue" ;;
esac
0
 

Author Comment

by:nocturn4l
ID: 34914941
thanks again ozo, you're awesome.  is this something you can only do using case instead of 'if'?  still learning here, thanks again.
0
 
LVL 84

Expert Comment

by:ozo
ID: 34915025
if expr "$color" : 'bl*' ; then echo blue ; fi
0
 

Author Closing Comment

by:nocturn4l
ID: 34915085
thank you!  learning alot from everyone here
0

Featured Post

Important Lessons on Recovering from Petya

In their most recent webinar, Skyport Systems explores ways to isolate and protect critical databases to keep the core of your company safe from harm.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The following is a collection of cases for strange behaviour when using advanced techniques in DOS batch files. You should have some basic experience in batch "programming", as I'm assuming some knowledge and not further explain the basics. For some…
Recently, an awarded photographer, Selina De Maeyer (http://www.selinademaeyer.com/), completed a photo shoot of a beautiful event (http://www.sintjacobantwerpen.be/verslag-en-fotoreportage-van-de-sacramentsprocessie-door-antwerpen#thumbnails) in An…
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
In a recent question (https://www.experts-exchange.com/questions/29004105/Run-AutoHotkey-script-directly-from-Notepad.html) here at Experts Exchange, a member asked how to run an AutoHotkey script (.AHK) directly from Notepad++ (aka NPP). This video…
Suggested Courses

636 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question