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Top Forums UNIX for Dummies Questions & Answers [Solved] Delete files with condition Post 302649419 by Skrynesaver on Thursday 31st of May 2012 09:57:12 AM
Old 05-31-2012
I may have misunderstood your requirements, but what's wrong with this bash "one" liner:

Code:
for i in directory/with/videos/files/*.mp4;do if [ ! -e ${i%.mp4}.avi ] ; then rm $i;fi;done

Or more explicitly:
Code:
for i in directory/with/videos/files/*.mp4;do # work through all mp4 files
   if [ ! -e "${i%.mp4}.avi" ] ; then # if no matching avi file exists
      rm "$i" # delete the mp4 file
   fi
done


Last edited by Skrynesaver; 05-31-2012 at 01:00 PM.. Reason: Quoted filename variables in the light of Scrutinizer's very valid observation.
This User Gave Thanks to Skrynesaver For This Post:
 

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MP4ART(1)							  MP4v2 Utilities							 MP4ART(1)

NAME
mp4art - manual page for mp4art - MP4v2 2.0.0 SYNOPSIS
mp4art [OPTION]... ACTION file... DESCRIPTION
For each mp4 (m4a) file specified, perform the specified ACTION. An action must be specified. Some options are not applicable for some actions. ACTIONS --list list all covr-boxes --add IMG add covr-box from IMG file --replace IMG replace covr-box with IMG file --remove remove covr-box --extract extract covr-box ACTION PARAMETERS --art-any act on all covr-boxes (default) --art-index IDX act on covr-box index IDX OPTIONS -z, --optimize optimize mp4 file after modification -y, --dryrun do not actually create or modify any files -k, --keepgoing continue batch processing even after errors -o, --overwrite overwrite existing files when creating -f, --force force overwrite even if file is read-only -q, --quiet equivalent to --verbose 0 -d, --debug NUM increase debug or long-option to set NUM -v, --verbose NUM increase verbosity or long-option to set NUM -h, --help print brief help or long-option for extended help --version print version information and exit DEBUG LEVELS (for raw mp4 file I/O) 0 supressed 1 add warnings and errors (default) 2 add table details 3 add implicits 4 everything VERBOSE LEVELS 0 warnings and errors 1 normal informative messages (default) 2 more informative messages 3 everything mp4art - MP4v2 2.0.0 June 2012 MP4ART(1)
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