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Full Discussion: help with grep and mailx
Top Forums UNIX for Dummies Questions & Answers help with grep and mailx Post 58351 by Perderabo on Thursday 18th of November 2004 03:01:53 PM
Old 11-18-2004
There is a problem with syntax like:

tee file1 | uuencode file1 file1 | mailx X@Y.com


When uuencode has two parameters, the first is the input file and that means that uuencode will not be reading from stdin thus breaking the pipeline. At the time uuencode reads from file1, the tee program may or may not have written to it. It depends on the order in which the programs in the pipeline are launched, the number of cpu's, etc.

If you really need file1 to exist on the local system try:

tee file1 | uuencode file1 | mailx X@Y.com

if not just go with:

uuencode file1 | mailx X@Y.com

The syntax to handle the zerio length file will depend on what shell you are using.
 

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LEARN ABOUT SUSE

lzdiff

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

BUGS

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

Tukaani 							    2009-07-05								 XZDIFF(1)
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