Shell script to read value from a file and compare it to another one

Posted by maneeshshetty on Super User See other posts from Super User or by maneeshshetty
Published on 2011-11-18T06:14:52Z Indexed on 2011/11/18 9:57 UTC
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linux

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shell-script

I have a C program which puts one unique value inside a test file (it would be a two digit number). Now I want to run a shell script to read that number and then compare with my required number (e.g. 40).

The comparison should deliver "equal to" or "greater".

For example: The output of the C program is written into the file called c.txt with the value 36, and I want to compare it with the number 40.

So I want that comparison to be "equal to" or "greater" and then echo the value "equal" or "greater".

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