one I find fun as you can do several versions for improved correctness, robustness and efficiency is find duplicate files in an input list and useful every once in awhile to boot
version 01 for the input file list from $* just crank md5sum, sort and show list of matches exclude empty files as all 0 byte files have the same content :-) tag your temp files with something like: $(date +%Y%m%d-%H%M%S)-$$ version 02 more efficient: add test to ensure file exists and is regular and readable first sort by file size using wc -c then only md5sum files of same size this is a chance to use bash tables or more temp files as you please consider sha1sum if md5sum matches version 3 (annoying fussy more than hard) make it work where file names have embedded spaces and other evil chars make it work to exclude duplicate file name entries as ./x.txt and x.txt are same file as are ~/mystuff.txt and ~myacct/mystuff.txt version 4 - full meal deal consider more than 1 group of matching files eg abcbbade full deal requires diff to ensure not equal ping me directly if you want to seminar some of these variants Chris
I can write simple bash shell scripts.
For example recently I wrote the following:
#/bin/bash
if [ $# -eq 0 ]; then
vi ~/Home/Personal/phone
else
grep $1 ~/Home/Personal/phone
fi
I would like to be stronger though so I have dug up
some info from the Internet that I will now go through.
I figure it might be useful if anyone has some not too sys admin
deep shell scripts that need writing then I could write them for practice.
Proposals welcome remembering of course that you get what you pay for
and I will publish my results here (unless I get complaints).
Regards
Ralph (Rocky) Boland
--
God flunked Intelligent design
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