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Full Discussion: getting files between specific date ranges in solaris
Top Forums Shell Programming and Scripting getting files between specific date ranges in solaris Post 302595112 by methyl on Thursday 2nd of February 2012 06:35:00 AM
Old 02-02-2012
@aliyesami
The script you found on the web contains basic scripting errors.
Quote:
#!/usr/bin/bash
printf "Enter start date( YYYYMMDD ):"
read startdate
printf "Enter end date( YYYYMMDD ):"
read enddate
touch -t "${startdate}0000.00" sdummy
touch -t "${enddate}0000.00" edummy
for fi in *
do
if [ $fi -nt "sdummy" -a ! $fi -nt "edummy" ] ;then
echo ls -al $fi
fi
done
Quote:
for fi in *
Never use this construct for open-ended lists of files. It breaks if any filename contains a space character and it breaks the Shell if there are too many files.
The shebang line is for "bash" when you have "ksh".
The script does not check the type of inode. If it comes across a directory it will break.
The script logic will ignore anything created on the end date.
The script creates the reference files in the directory you are searching.
The line starting "echo" stops the "ls" executing.


The "find" approach is best.


@balajesuri
The script you post is interesting but the O/P has "ksh" not "bash" and probably won't have a Linux "stat" command.
The script contains similar errors to that posted by the O/P.
Quote:
for file in `ls | grep -v "^d"`
This will ignore every file with a name starting with a lower case "d". It will not ignore directories. Never use "for" to process a directory list.


I'm still searching for any course, book or manual which advocates using "for" with an open-ended list of filenames. This construct must have come from somewhere!
This User Gave Thanks to methyl For This Post:
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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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