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Full Discussion: Quitting from a script, either sourced or not
Top Forums Shell Programming and Scripting Quitting from a script, either sourced or not Post 302422448 by MadMage on Tuesday 18th of May 2010 12:30:40 PM
Old 05-18-2010
Quote:
Originally Posted by scottn
Any script could run sourced, or not.

Why would you need to source the script?

If you do source it, there are implications which could only be overcome programmatically.

The simple solution is: Don't source the script. If you have to source it, then source it from another script, not from the login prompt (if your concern is that you get logged out when you "exit" the script). If you really have to source it from the shell, start a second shell before you source it.
The main purpose of the script is to set some environment variables, so I MUST source it. However, the same script also manage a set of choices for these variables (i.e., it can create or remove an "environment", list all the "environments", alias an "environment" and then set all the environment variables to the values specified by the particular "environment" chosen). In the "management" case, you do not need to source it, e.g.:

Code:
$ test add an_environment
$ test remove another_environment
$ . test set an_environment

 

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LEARN ABOUT DEBIAN

service

service(8)						      System Manager's Manual							service(8)

NAME

       service - run a System V init script

SYNOPSIS

       service SCRIPT COMMAND [OPTIONS]

       service --status-all

       service --help | -h | --version

DESCRIPTION

       service	runs a System V init script in as predictable an environment as possible, removing most environment variables and with the current
       working directory set to /.

       The SCRIPT parameter specifies a System V init script, located in /etc/init.d/SCRIPT.  The  supported  values  of  COMMAND  depend  on  the
       invoked	script.  service passes COMMAND and OPTIONS to the init script unmodified.  All scripts should support at least the start and stop
       commands.  As a special case, if COMMAND is --full-restart, the script is run twice, first with the stop command, then with the start  com-
       mand.

       service --status-all runs all init scripts, in alphabetical order, with the status command.

EXIT CODES

       service calls the init script and returns the status returned by it.

FILES

       /etc/init.d
	      The directory containing System V init scripts.

ENVIRONMENT

       LANG, TERM
	      The only environment variables passed to the init scripts.

SEE ALSO

       /etc/init.d/skeleton,
       update-rc.d(8),
       init(8),
       invoke-rc.d(8).

								     Jan 2006								service(8)
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