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LinuxSeeker

12-18-2005 06:39 AM

Add file content to a variable (bash)?

I am trying to create a simple shell script that will print the following message on the screen: "Your kernel is: (kernel version)".

My script is:

Code:

#!/bin/bash

yks="Your kernel is: "

kernel=cat /home/usertest/file1

#this is the text file in which I have saved my kernel version

echo $yks $kernel

But it seems that I cannot assign the cat command to a variable. Any suggestions?

cs-cam

12-18-2005 06:40 AM

Code:

kernel=`cat /home/usertest/file1`

Backticks are your answer :)

zeos	12-18-2005 08:36 AM

Yup ...you could also shorten this to

Code:

#!/bin/bash

kernel=`uname -r`

echo "Your kernel is" $kernel

denver1980

12-19-2005 05:20 AM

Want to do a one-liner ?

Code:

echo "Your kernel is `uname -r`"

Want to execute it anytime-anywhere ?
Add an alias in you ~/.profile

Code:

alias Ver="echo \"Your kernel is `uname -r`\"

Invoke it by typing :

Code:

# Ver

LinuxSeeker

12-19-2005 01:41 PM

Thank you all. What I mainly wanted was to know how to use 'cat' in a variable but your answers were even better :)

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