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Full Discussion: Specifying a list name as argument and using that list in script.
Top Forums Shell Programming and Scripting Specifying a list name as argument and using that list in script. Post 302927881 by junior-helper on Saturday 6th of December 2014 10:38:47 PM
Old 12-06-2014
You're welcome! The name of the reference variable doesn't have to be ref though.

Quote:
When I run your script, it uses the list1 variable list1="www.fsf.org www.defectivebydesign.org" , not the command line argument.
Of course it uses the command line argument, otherwise it would not show the content of the list1 variable.

$1 is the first command line argument
ref=$1 command line argument is assigned to the ref variable
${!ref} accessing $list1 via $ref.

Quote:
If I comment out the list1 variable in your script and run it, there is no output?
There is no error checking at all.
If you comment out list1 and use list1 as argument, the script fails to find the list1 variable, thus there is no output. It's the same as if you try check.sh list4 or even just check.sh .
Another issue you might come across is that the script will ignore potential arguments after the first argument, e.g. check.sh list1 list3, I think you know why.

Hope this helps.
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LEARN ABOUT CENTOS

installsieve

INSTALLSIEVE(1) 					      General Commands Manual						   INSTALLSIEVE(1)

 *

NAME

       installsieve - user utility for managing sieve scripts

SYNOPSIS

       installsieve

DESCRIPTION

       installsieve is a utility that allows users to manage their sieve scripts kept on the server.

OPTIONS

       -v <name> View script with the given name. The script if retrieved sucessfully is output to standard output.

       -l  List  all  of  the scripts currently on the server. If one of the scripts is active a arrow is printed indicating that it is the active
       script.

       -p <port> Port to connect to. If left off this defaults to "sieve" as defined in /etc/services.

       -i <file> Install a file onto the server. If a script with the same name already exists on the server it is overwritten.  Upon  sucessfully
       putting	the  script on the server the script is set active. If <file> has the extension .script it is chopped when put on the server since
       sieve names may not contain a '.'.

       -a <name> Set <name> as the active script. The list of available names can be obtained from the '-l' option..

       -d <name> Delete the sieve script on the server with <name>.

       -m <mechanism> Force installsieve to use <mechanism> for authentication. If not specified the strongest authentication mechanism is chosen.

       -g <name> Get the sieve script with <name> and save it to disk with a ".script" extension. If a file with that name already  exists  it	is
       overwritten.

       -u <user> Userid/Authname to use for authentication; by default, the current user.

CMU
								   Project Cyrus						   INSTALLSIEVE(1)
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