Originally Posted by mirni

Although this construct will work, I would like to suggest you redesign the script. The reason is security vulnerability that you are implicitly building into it. What if the user runs the script with "./test.sh rm -r /" (don't run this!)? Your script would execute that command obediently.
You'd be better off to stay away from 'eval', if you cannot have total control of the argument of 'eval'. In other words, invoking eval on a user-defined input can be dangerous.

You might want to hard-code the command into your script, and then just pass the argument to it, something like:

Code:

#!/bin/bash
arg=$1
#do whatever
echo $arg

and then call the script with

Code:

./test.sh "$var"

If you can show us a bigger picture of what you are trying to accomplish, we could suggest a better way to implement it.