[francisco899]

What is the script for inputing a name of a file that I would like to analyse by the script?

[psi42]

What is the script for inputing a name of a file that I would like to analyse by the script?

I'm not exactly sure what you're asking here...

In order to use an argument passed to a bash (which is all I know) shell script, you would do something like this

#!/bin/sh

echo "passed arguments: $1 $2 $3 $4"

exit

~psi42