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Full Discussion: data integrity check needed
Top Forums Shell Programming and Scripting data integrity check needed Post 302690479 by mirni on Thursday 23rd of August 2012 05:21:22 AM
Old 08-23-2012
You can check hash e.g. sha1sum. I would tar the whole directory and calculate sha1sum on the fly:

Code:
tar czf - /path/to/dir | sha1sum

Then do the same on the other side and verify that the checksums are the same.

On a second thought, this may give different checksums if there are different version of tar or gzip on the different machines...

Perhaps better to store checksums in a file and check them from there.

Code:
find /path/to/dir -type f -exec sha1sum {} \;  > sums.tmp

Copy the file over to the other machine:
Code:
scp sums.tmp <user>@<remoteServer>:~

And verify against this file on the remote machine:
Code:
sha1sum -c ~/sums.tmp

Last edited by mirni; 08-23-2012 at 06:30 AM..
This User Gave Thanks to mirni For This Post:
hk_kamozalwar
 

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LEARN ABOUT REDHAT

sha1sum

SHASUM(1)								FSF								 SHASUM(1)

NAME

       shasum - compute and check SHA1 message digest

SYNOPSIS

       sha1sum [OPTION] [FILE]...
       sha1sum [OPTION] --check [FILE]

DESCRIPTION

       Print or check SHA1 (160-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 SHA1 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 FIPS-180-1.  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 shasum is maintained as a Texinfo manual.  If the info and shasum programs are properly installed at your site,
       the command

	      info shasum

       should give you access to the complete manual.

shasum (coreutils) 4.5.3					   February 2003							 SHASUM(1)
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