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Full Discussion: sh script for file received confirmation
Top Forums Shell Programming and Scripting sh script for file received confirmation Post 302528667 by tukuyomi on Tuesday 7th of June 2011 04:38:16 PM
Old 06-07-2011
In sh: Tweak F to your needs. A bit quick but it should work

Code:
#!/bin/sh

F='/path/to/that/certain/file'
MD5='/tmp/md5ofthatcertainfile'

[ "$(md5sum "$F")" = "$(cat "$MD5" 2>/dev/null)" ] || {
	md5sum "$F" > "$MD5"
	# Send your e-mail here
}

exit 0

Schedule it with cron (crontab -e typically)
Last edited by tukuyomi; 06-07-2011 at 05:55 PM..
This User Gave Thanks to tukuyomi For This Post:
mamemlin
 

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LEARN ABOUT REDHAT

md5sum

MD5SUM(1)								FSF								 MD5SUM(1)

NAME

       md5sum - compute and check MD5 message digest

SYNOPSIS

       md5sum [OPTION] [FILE]...
       md5sum [OPTION] --check [FILE]

DESCRIPTION

       Print or check MD5 (128-bit) checksums.	With no FILE, or when FILE is -, read standard input.

       -b, --binary
	      read files in binary mode (default on DOS/Windows)

       -c, --check
	      check MD5 sums against given list

       -t, --text
	      read files in text mode (default)

   The following two options are useful only when verifying checksums:
       --status
	      don't output anything, status code shows success

       -w, --warn
	      warn about improperly formated checksum lines

       --help display this help and exit

       --version
	      output version information and exit

       The  sums  are computed as described in RFC 1321.  When checking, the input should be a former output of this program.  The default mode is
       to print a line with checksum, a character indicating type (`*' for binary, ` ' for text), and name for each FILE.

AUTHOR

       Written by Ulrich Drepper and Scott Miller.

REPORTING BUGS

       Report bugs to <bug-coreutils@gnu.org>.

COPYRIGHT

       Copyright (C) 2002 Free Software Foundation, Inc.
       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

SEE ALSO

       The  full documentation for md5sum is maintained as a Texinfo manual.  If the info and md5sum programs are properly installed at your site,
       the command

	      info md5sum

       should give you access to the complete manual.

md5sum (coreutils) 4.5.3					   February 2003							 MD5SUM(1)
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