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Full Discussion: Facing issues with shell script changes
Top Forums Shell Programming and Scripting Facing issues with shell script changes Post 303026251 by Corona688 on Thursday 22nd of November 2018 10:25:25 AM
Old 11-22-2018
Basically never use options like -i as they have lots of unfortunate side effects, like changing file ownerships and permissions besides destroying your original input if anything goes wrong. It's not worth it just to make a pretty one-liner.

Code:
awk 'NR==1 { sub(OLD, NEW); }; 1' OLD="xxyxx" NEW="XXYXX" inputfile > outputfile
# Uncomment these once you've tested awk does what you want.
# cat outputfile > inputfile
# rm -f outputfile

Last edited by Corona688; 11-22-2018 at 11:46 AM..
 

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LEARN ABOUT DEBIAN

podofoxmp

PODOFOXMP(1)							     podofoxmp							      PODOFOXMP(1)

NAME

       podofoxmp - Modify or extract XMP information from a PDF file

SYNOPSIS

       podofoxmp [inputfile] [xmpfile outputfile]

DESCRIPTION

       podofoxmp  is  one  of the command line tools from the PoDoFo library that provide several useful operations to work with PDF files. It can
       extract or modify XMP information in a PDF file.

OPTIONS

       [inputfile]

	      Input PDF file. This is the only option needed to extract the XMP information from a PDF file.

       [xmpfile]

	      Optional file that provides PDF XMP structure. It must be used in conjuction with an [outputfile].

       [outputfile]

	      Output PDF file. It is only used in conjuction with an [xmpfile].

SEE ALSO

       podofobox(1), podofocountpages(1), podofocrop(1), podofoencrypt(1), podofoimg2pdf(1), podofoimgextract(1), podofoimpose(1), podofoincremen-
       talupdates(1), podofomerge(1), podofopages(1), podofopdfinfo(1), podofotxt2pdf(1), podofotxtextract(1), podofouncompress(1),

AUTHORS

       PoDoFo is written by Dominik Seichter <domseichter@web.de> and others.

       This manual page was written by Oleksandr Moskalenko <malex@debian.org> for the Debian Project (but may be used by others).

PoDoFo								    2010-12-09							      PODOFOXMP(1)
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