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Full Discussion: Switching shells in UNIX Scripts
Top Forums Shell Programming and Scripting Switching shells in UNIX Scripts Post 88986 by vino on Thursday 10th of November 2005 11:27:53 AM
Old 11-10-2005
I doubt you can switch the shell in the middle of a script.

Why do you want to switch ?

the shells have similiar constructs save for a few ones.

Anyway, you can compile the second part of the script as a new script which runs in bash and invoke that.

Code:
#! /bin/ksh
# commands 
# which 
# runs 
# in 
# the 
# ksh 
# shell
#
. ./script-that-requires-bash

where

script-that-requires-bash is

Code:
#! /bin/bash
# commands 
# which 
# runs 
# in 
# the 
# bash
# shell

If you export any variables in the ksh script, there is a chance that the inner script might not be able to see it. It depends on the way you invoke the ksh script.
 

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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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