accessing a number from a file in bash scripting

Question

I have a file abc.out. This file only has a number written in it. I want to access this file, store this number in a variable and use an if condition to check some condition. How do I do this in my bash script?

Barmar · Accepted Answer · 2014-09-17 06:17:55Z

2

You can read the file contents into a variable with:

var=$(< filename)

or:

read var < filename

answered Sep 17, 2014 at 6:17

Barmar

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Sriharsha Kalluru · Accepted Answer · 2014-09-17 09:33:28Z

0

You can use the followign syntax.

NUM=$(cat abc.out)

or

NUM=`cat abc.out`

answered Sep 17, 2014 at 9:33

Sriharsha Kalluru

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