problem with script

[Henry Chua]

Hi Guys,

I have a queries with scripting:

!#/usr/bin/csh

set a=$1
set b=$2
set c=$3

May I know what does this use of $ sign represent?

Best regards
Henry

[Sergejs Svitnevs · Accepted solution]

There are the parameters from the command line.
For example, if you have a script named 'foo', and you want to give it two
parameters, 'X1' and 'X2'. You would type this command:
foo X1 X2

Within the script, '$1' will return the first parameter 'X1', and '$2' will
return the second parameter 'X2'. '$0' returns the command name, 'foo'.

#!/bin/csh -f
echo 'Command:' $0
echo 'Parameters:' $1 $2

Regards,
Sergejs

[Henry Chua]

thanks Sergejs, right on..