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Full Discussion: Limit the number of characters in bash output
Top Forums Shell Programming and Scripting Limit the number of characters in bash output Post 302920793 by Don Cragun on Monday 13th of October 2014 01:15:53 AM
Old 10-13-2014
Or more simply, with any POSIX conforming shell (including bash and ksh):
Code:
#!/bin/ksh
for VAR in "a-very-very-very-long-crazy-filename.jpg" "short.jpg" "medium-length.txt"
do	if [ ${#VAR} -gt 17 ]
	then	printf 'Processing %.14s...\n' "$VAR"
	else	printf 'Processing %s\n' "$VAR"
	fi
done

which produces the output:
Code:
Processing a-very-very-ve...
Processing short.jpg
Processing medium-length.txt

These 3 Users Gave Thanks to Don Cragun For This Post:
Chubler_XL sea Shadow_Reaper
 

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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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