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Top Forums Shell Programming and Scripting How to clear $1 when dot-running a script. Post 302173550 by bakunin on Friday 7th of March 2008 04:57:32 AM
Old 03-07-2008
You are right and wrong, fpmurphy: The variable 1 is not set in the echo-statement. It is merely displayed there. It is set when the script is started and as the script is started in the current environment the variable is set in the current environment.

When you execute "script 1", you start a new shell environment, then set the variable 1 in this environment to "1" and then the script starts to run, yes? If you issue ". script 1" you do not start a new environment but the rest of the procedure occurs quite the same.

bakunin
 

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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 environment as possible, removing most environment variables and with 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 it 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 command. 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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