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How to Evaluate an Expression in Bash |
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Friday, 15 October 2010 |
Of course with if statement:
Create a file filename.txt with yes text in it.
echo "ok" > filename.txt
Then use the following Bash code:
example1.sh #!/usr/local/bin/bash var=`cat filename.txt` if [ "$var" = "yes" ]; then echo "yessss!" fi
Line 3 runs command cat filename.txt and then put the output of that command to variable $var.
Line 5 compare content of $var variable with "yes" string and if strings are equal it will display echo on the screen.
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Last Updated ( Friday, 15 October 2010 )
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Bash Programming 
