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Full Discussion: Running set options from the command line and bash command
Top Forums UNIX for Dummies Questions & Answers Running set options from the command line and bash command Post 302542415 by Straitsfan on Wednesday 27th of July 2011 01:49:23 PM
Old 07-27-2011
Running set options from the command line and bash command
I'm reading about debugging aids in bash and have come across the set command. It says in my little book that an addition to typing

set [option]

you can also use them "on the command line when running a script..." and it lists this in a small table:


set -o option Command Line option
noexec -n
verbose -v
xtrace -x

I know how to set the options in the first column, but how are the options in the second column used? I've tried typing the name of the script followed by the option and vice versa, but only the results of the script are displayed on the screen. Can someone tell me what I'm doing wrong, or am I misunderstanding something?

The book I'm using is "Learning the bash shell" if that helps, 3rd edition, page 222 halfway down under "set options"

Also, on the following page, when illustrating how to find a bug in program, it lists the command

bash -v scriptname

when looking for the bug.

what does the command bash do exactly? I haven't encountered this command before in this context and am not sure what's going on.
 

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LEARN ABOUT DEBIAN

pct-scanner-script

PCT-SCANNER-SCRIPT(1)					      General Commands Manual					     PCT-SCANNER-SCRIPT(1)

NAME

       pct-scanner-script - easy scan and create merged DjVu and PDF documents for archiving

SYNOPSIS

       pct-scanner-script [--help]

DESCRIPTION

       pct-scanner-script  is  a  bash script and configuration system to easily scan documents and create a digital archiving. It can create DjVu
       PDF and JPEG outputs, in merged and individual files. It also has a configuration system where different  configurations  can  be  defined,
       making it easy to switch between configurations.

       Please use pct-scanner-script --help to find all program options, the complete help, and all examples.

       Features:
	 - auto archiving in merged and individual DjVu, PDF, and JPEG files
	 - auto and manual resume when scanning somehow fails
	 - cascading configuration system, for easy customizing
	 - easy command-line-style bash program, with useful options
	 - archiving made possible with both adf and flatbed scanners
	 - built for productivity and daily use
	 - uses bash, scanadf and other mainstream processing tools
	 - multilanguage commandline output

OPTIONS

       -h, --help, -?
	      Show summary of options, help, and examples.

DEBUGGING

       This  program  is  a  helper  script  to easy scan and automated digital document archiving for normal and adf scanners. You can debug this
       script by running it as bash -x pct-scanner-script [options]. The script is just a nice wrapper for the scanadf, DjVu and PDF tools.

SEE ALSO

       scanadf(1),

AUTHOR

       pct-scanner-script and this manual page are written by:
	      Jelle de Jong <jelledejong@powercraft.nl>.

								  March 31, 2009					     PCT-SCANNER-SCRIPT(1)
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