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Full Discussion: Creating a control file for a group of files
Top Forums Shell Programming and Scripting Creating a control file for a group of files Post 302441277 by pravin27 on Friday 30th of July 2010 04:25:20 AM
Old 07-30-2010
Hi,

Try This,

Code:
#!/usr/bin/perl

`ls ODS.POS.*.dat > filelist`;
$timest=`date '+%m%d%Y_%H%M%S'`;
chop($timest);
open (FH,"<","filelist");
while (<FH>) {
chomp;
if (/(.+?)\.(.+?)\.(.+?)\.(.+?)\..*/) {
        $ctl='ODS.POS';
        $ctl="$ctl.$3.$timest.ctl";
        open (FW,">>","$ctl");
        print FW "File name - $_ \n";
        print FW "Table Name - $4 \n";
        $checksum=`md5sum $_ | cut -d " " -f1`;
        $row_cnt=`wc -l $_ | cut -d " " -f1`;
        chop($checksum,$row_cnt);
        print FW "Row Count - $row_cnt \n";
        print FW "md5Checksum - $checksum \n";
        print FW "--------------------------------------\n";
}
}
close(FH);

 

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LEARN ABOUT LINUX

md5sum.textutils

MD5SUM(1)                                                          User Commands                                                         MD5SUM(1)

NAME

       md5sum - compute and check MD5 message digest

SYNOPSIS

       md5sum [OPTION]... [FILE]...

DESCRIPTION

       Print or check MD5 (128-bit) checksums.

       With no FILE, or when FILE is -, read standard input.

       -b, --binary
              read in binary mode

       -c, --check
              read MD5 sums from the FILEs and check them

       --tag  create a BSD-style checksum

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

   The following five options are useful only when verifying checksums:
       --ignore-missing
              don't fail or report status for missing files

       --quiet
              don't print OK for each successfully verified file

       --status
              don't output anything, status code shows success

       --strict
              exit non-zero for improperly formatted checksum lines

       -w, --warn
              warn about improperly formatted 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 space, a character indicating input mode ('*' for binary, ' ' for text or where binary is  insignificant),
       and name for each FILE.

BUGS

       Do  not  use  the  MD5 algorithm for security related purposes.  Instead, use an SHA-2 algorithm, implemented in the programs sha224sum(1),
       sha256sum(1), sha384sum(1), sha512sum(1), or the BLAKE2 algorithm, implemented in b2sum(1)

AUTHOR

       Written by Ulrich Drepper, Scott Miller, and David Madore.

REPORTING BUGS

       GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
       Report md5sum translation bugs to <http://translationproject.org/team/>

COPYRIGHT

       Copyright (C) 2017 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       Full documentation at: <http://www.gnu.org/software/coreutils/md5sum>
       or available locally via: info '(coreutils) md5sum invocation'

GNU coreutils 8.28                                                 January 2018                                                          MD5SUM(1)
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