Hi,
This post is mainly aimed towards shell script newbies like myself and the goal is that they don’t end up wasting time on this as I had to.
So, if you are creating a new shell script that requires 10 or more parameters, you need to remember one thing that you can’t access the 10th and further parameters by just $10 or $11, etc.
If you simply put something like below,
... TenthParameter=$10 EleventhParam=$11 echo $TenthParameter echo $EleventhParameter ...
The output would actually look like below: (Assume First’s parameter’s value is “First”)
First0 First1
and NOT the actual values of the tenth and eleventh parameters.
This is because the bash interpreter first sees $1 (in the “$10”) and replaces its value immediately.
To get the value of parameters from and beyond 10th param, you need to put them in Curly {} braces as shown below
... // # WORKS!
...
TenthParameter=${10}
EleventhParameter=${11}
echo $TenthParameter
echo $EleventhParameter
...
This would print the actual values of the parameters.
Hope this helps!