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Full Discussion: ksh scripting SSH to Compare File Sizes
Top Forums Shell Programming and Scripting ksh scripting SSH to Compare File Sizes Post 303025336 by Abstract3000 on Wednesday 31st of October 2018 03:23:06 AM
Old 10-31-2018
ksh scripting SSH to Compare File Sizes
Hello,
I currently have very little experience with Shell scripting and trying to create a script for the purpose of collecting the size of a couple sizes on 4 different Hosts. The Idea is to collected the information from the files in which the script is kicked off on, store the values into Variables, SSH to the next Host and repeat for the remaining 2. With Variables Collected I would like to compare the sizes and output that they matched.

This is what I have come up with so far but not the most familiar with constructs and especially the SSH Process.

Code:
#!/bin/ksh

FILENAME1=/root/directory1/files/file1.fil
FILE1SIZEa=$(stat -c%s "$FILENAME1")

FILENAME2=/root/directory2/files/file2.fil
FILE2SIZEa=$(stat -c%s "$FILENAME2")

ssh user@server2 |

FILENAME3=/root/directory1/files/file1.fil
FILE1SIZEb=$(stat -c%s "$FILENAME3")

FILENAME4=/root/directory2/files/file2.fil
FILE2SIZEb=$(stat -c%s "$FILENAME4")

ssh user@server3 |

FILENAME5=/root/directory1/files/file1.fil
FILE1SIZEc=$(stat -c%s "$FILENAME5")

FILENAME6=/root/directory2/files/file2.fil
FILE2SIZEc=$(stat -c%s "$FILENAME6")

ssh user@server4 |

FILENAME7=/root/directory1/files/file1.fil
FILE1SIZEd=$(stat -c%s "$FILENAME7")

FILENAME8=/root/directory2/files/file2.fil
FILE2SIZEd=$(stat -c%s "$FILENAME8")


if && [[ "$FILE1SIZEa" =~ ^($FILE1SIZEb|$FILE1SIZEc|$FILE1SIZEd)$ ]]; then
	print "FILE1 Sizes Match"
else
	print "Something is Wrong with FILE1"
fi

if && [[ "$FILE2SIZEa" =~ ^($FILE2SIZEb|$FILE2SIZEc|$FILE2SIZEd)$ ]]; then
	print "FILE2 Sizes Match"
else
	print "Something is Wrong with FILE2"
fi

If someone could help get this functioning, or possibly has suggestions for more efficient scripting with less repetition It would be greatly appreciated.


Thanks for your consideration.
 

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LEARN ABOUT LINUX

comm

COMM(1) 							   User Commands							   COMM(1)

NAME

       comm - compare two sorted files line by line

SYNOPSIS

       comm [OPTION]... FILE1 FILE2

DESCRIPTION

       Compare sorted files FILE1 and FILE2 line by line.

       With  no  options,  produce three-column output.  Column one contains lines unique to FILE1, column two contains lines unique to FILE2, and
       column three contains lines common to both files.

       -1     suppress column 1 (lines unique to FILE1)

       -2     suppress column 2 (lines unique to FILE2)

       -3     suppress column 3 (lines that appear in both files)

       --check-order
	      check that the input is correctly sorted, even if all input lines are pairable

       --nocheck-order
	      do not check that the input is correctly sorted

       --output-delimiter=STR
	      separate columns with STR

       --help display this help and exit

       --version
	      output version information and exit

       Note, comparisons honor the rules specified by `LC_COLLATE'.

EXAMPLES

       comm -12 file1 file2
	      Print only lines present in both file1 and file2.

       comm -3
	      file1 file2  Print lines in file1 not in file2, and vice versa.

AUTHOR

       Written by Richard M. Stallman and David MacKenzie.

REPORTING BUGS

       Report comm bugs to bug-coreutils@gnu.org
       GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
       General help using GNU software: <http://www.gnu.org/gethelp/>
       Report comm translation bugs to <http://translationproject.org/team/>

COPYRIGHT

       Copyright (C) 2010 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

       join(1), uniq(1)

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

	      info coreutils 'comm invocation'

       should give you access to the complete manual.

GNU coreutils 8.5						   February 2011							   COMM(1)
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