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Full Discussion: Help comparing 2 files and sending differences
Top Forums Shell Programming and Scripting Help comparing 2 files and sending differences Post 302753761 by bakunin on Wednesday 9th of January 2013 10:14:24 AM
Old 01-09-2013
Quote:
Originally Posted by jabbott3
Sorry, one more question, can I make it not email if file2 is 0 even though there are still differences?
Of course you can:

Code:
if [ $(ls -s file2 | cut -f1) -gt 0 ] ; then
     diff file1 file2 > tmpfile
     if ....
          mail -s .....
     fi
fi

"ls -s" is the file size in blocks, if the file is empty it is 0.

I hope this helps.

bakunin
 

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LEARN ABOUT NETBSD

xzdiff

XZDIFF(1)                                                            XZ Utils                                                            XZDIFF(1)

NAME

       xzcmp, xzdiff, lzcmp, lzdiff - compare compressed files

SYNOPSIS

       xzcmp [cmp_options] file1 [file2]
       xzdiff [diff_options] file1 [file2]
       lzcmp [cmp_options] file1 [file2]
       lzdiff [diff_options] file1 [file2]

DESCRIPTION

       xzcmp  and  xzdiff  invoke cmp(1) or diff(1) on files compressed with xz(1), lzma(1), gzip(1), bzip2(1), or lzop(1).  All options specified
       are passed directly to cmp(1) or diff(1).  If only one file is specified, then the files compared are file1 (which must have a suffix of  a
       supported  compression format) and file1 from which the compression format suffix has been stripped.  If two files are specified, then they
       are uncompressed if necessary and fed to cmp(1) or diff(1).  The exit status from cmp(1) or diff(1) is preserved.

       The names lzcmp and lzdiff are provided for backward compatibility with LZMA Utils.

SEE ALSO

       cmp(1), diff(1), xz(1), gzip(1), bzip2(1), lzop(1), zdiff(1)

BUGS

       Messages from the cmp(1) or diff(1) programs refer to temporary filenames instead of those specified.

Tukaani                                                             2011-03-19                                                           XZDIFF(1)
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