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up vote 1 down vote favorite

I know little about shell script but I want to try to implement some complicated scripts.

Say I have a doitall.sh with the content like:

zip -j version_a_en.zip en_filea1.txt en_fileb2.json

And a doitall2.sh with the content like:

zip -j version_b_en.zip en_fileb1.txt en_fileb2.json

How can I use "a" and "en" as parameters so that I can use only one script to handle all the similar requirements. Like

./doitall.sh a en

or

./doitall.sh b fr
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1 Answer 1

up vote 2 down vote accepted

The commandline parameters a and en can be accessed in shell scripts using $1 and $2: 

#! /bin/bash
zip -j version_"$1"_"$2".zip "$2"_filea1.txt "$2"_fileb2.json

care has to be taken when you have numbers following them in the text, that is why I always tend to put them in double quotes, but in this case you could leave them out.

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The standard way to delimit the variable name is with braces, as in "version_${1}_${2}.zip", with the double quotes around the whole being necessary in case the arguments themselves contain spaces. –  Jonathan Leffler Jan 4 at 15:47

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