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Top Forums Shell Programming and Scripting Rename first N numeric strings in filename Post 303033747 by anbu23 on Thursday 11th of April 2019 05:46:19 AM
Old 04-11-2019
Code:
$ for i in *.mp4
> do
> Num=${i%%[a-zA-Z]*}
> echo mv $i $((10000 + RANDOM % 9999))${i#$Num}
> done
mv 29003ArianaGrandeDangerousWoman9WbCfHutDSE.mp4 12880ArianaGrandeDangerousWoman9WbCfHutDSE.mp4
mv 29024ArianaGrandeFocuslfwVfwpfp8.mp4 17588ArianaGrandeFocuslfwVfwpfp8.mp4
mv 39043ArianaGrandeGodisawomankHLHSlExFis.mp4 19680ArianaGrandeGodisawomankHLHSlExFis.mp4
mv 87338ArianaGrandebreakupwithyourgirlfriendimboredLH4Y1ZUUx2g.mp4 17652ArianaGrandebreakupwithyourgirlfriendimboredLH4Y1ZUUx2g.mp4
mv 92593ArianaGrandebreathinkN0iD0pI3o0.mp4 17909ArianaGrandebreathinkN0iD0pI3o0.mp4

 

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MP4FILE(1)							  MP4v2 Utilities							MP4FILE(1)

NAME
mp4file - manual page for mp4file - MP4v2 2.0.0 SYNOPSIS
mp4file [OPTION]... ACTION file... DESCRIPTION
For each mp4 file specified, perform the specified ACTION. An action must be specified. Some options are not applicable to some actions. ACTIONS --list list (summary information) --optimize optimize mp4 structure --dump dump mp4 structure in human-readable format OPTIONS -y, --dryrun do not actually create or modify any files -k, --keepgoing continue batch processing even after errors -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 mp4file - MP4v2 2.0.0 June 2012 MP4FILE(1)
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