Ubuntu
bash package

Shell script

Asked by peter

Hi

I developed a shell script with the following lines:

read x
if $x = a then
echo 'x ist a'
fi
read i

If I start the script, I can enter the key "a". I do this and press Enter. And the script will be finished immediately.

Why I don't get the echo? Where's the problem? Thanks.
Peter

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peter
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Revision history for this message
Sam_ (and-sam) said : 		#1

Hope this helps
http://bin-bash.de/scripts.php

http://tldp.org/LDP/abs/html/index.html

Revision history for this message
Andrea Francia (andrea-francia) said : 		#2

I don't know what shell are you using but if you are using bash read the followings.

You should use the `test` command or the `[` command.

read a
if [ "$x" = "a" ]; then
   echo 'x ist a';
fi
read i

You can find more information typing `help test` or `help [`

Revision history for this message
peter (peter-neuweiler) said : 		#3

Hi Sam

Thanks a lot.
Peter

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peter (peter-neuweiler) said : 		#4

Hi Andrea

Wow - thanks. You helped me. The brackets are important. Thanks a lot.
Peter

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Sam_ (and-sam) said : 		#5

My pleasure.
About Test Constructs
http://tldp.org/LDP/abs/html/testconstructs.html

Revision history for this message
peter (peter-neuweiler) said : 		#6

Thanks Sam.
Peter