Code:#!/bin/cshif ( A$1 == A ) then    echo     echo LIST <name>    echo     exitendif..............Ok this is a sample from a bigger script I got. The scripts starts with this piece of code and it is not related to any of the code that follows afterwards.The script usage is like: LIST 'name', where LIST is the script command and 'name' is a certain constant introduced by the user.What I know until now is that if I run the script like this:LIST 'name'the script will do it's job with the constant 'name'but if I run without 'name' like this:LISTit will show:LIST <name>like a short description on how to use the command. This description is from the echo inside if.What I need to understand is what this line does:if ( A$1 == A ) thenThanks!
How can the following script be explained?
shell script;csh