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Full Discussion: Need to decrypt a file in a directory (SHL script)
Top Forums Shell Programming and Scripting Need to decrypt a file in a directory (SHL script) Post 302474196 by DGPickett on Tuesday 23rd of November 2010 02:30:32 PM
Old 11-23-2010
Use the Code tags button left of <> above so it looks like this:
Code:
$!/usr/bin/ksh
 .
 .
 .
# Start Decrypt Process
# Determine if there is a file to process 
for $FileName in *.dat.pgp
do
  if [ "$FileName" = '*.dat.pgp' ] # no files
  then 
    exit
  fi
 
  if [ "$(fuser $FileName 2>/dev/null)" !="" ]
  then 
    date "+%Y-%m-%d %H:%M:%S $FileName is in use"
    continue 
  fi

  gpg -o #FileName -d > $LocalDir

  if [ $? = 0] 
  then 
  else 
    date "+%Y-%m-%d %H:%M:%S error decoding $FileName"
  fi
done

Find is overkill if the files are all in one or a few directories. I never liked the find -exec option, as you do not have good error handling when unattended. You can "find | while read f ; do done" and check for errors, have a separate log for each conversion, etc. Not sure what "$FileName find" does! You can detect unexpanded wild cards easier as above. Not sure what the gpg command line is up to, but most of the line is a weird #comment, work on that. You, too deserve structural indentation and blank lines for easy visual separation of complex constructs.
 

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LEARN ABOUT DEBIAN

mediainfo

MEDIAINFO(1)							   User Commands						      MEDIAINFO(1)

NAME

       MediaInfo - command line utility to display information about audio/video files

       MediaInfo-Gui - graphical utility to display information about audio/video files

SYNOPSIS

       mediainfo [-Options...] FileName1 [Filename2...]
       mediainfo --Inform=FMT FileName
       mediainfo-gui [-Options...] FileName1 [Filename2...]
       mediainfo-gui --Inform=FMT FileName

DESCRIPTION

       MediaInfo supplies technical and tag information about a video or audio file

       What information can I get from MediaInfo?

       - General: title, author, director, album, track number, date, duration...
       - Video: codec, aspect, fps, bitrate...
       - Audio: codec, sample rate, channels, language, bitrate...
       - Text: language of subtitle
       - Chapters: number of chapters, list of chapters

       What format does MediaInfo support?

       - Video: MKV, OGM, AVI, DivX, WMV, QuickTime, Real, MPEG-1, MPEG-2, MPEG-4, DVD (VOB)...
       - Video Codecs: DivX, XviD, MSMPEG4, ASP, H.264, AVC...
       - Audio: OGG, MP3, WAV, RA, AC3, DTS, AAC, M4A, AU, AIFF...
       - Subtitles: SRT, SSA, ASS, SAMI...

       What can I do with it?

       - Read many video and audio file formats
       - View information in different formats (text, sheet, tree, HTML...)
       - Customise these viewing formats
       - Export information as text, CSV, HTML...
       - Graphical Interface, Command Line, or library versions available

OPTIONS

       MediaInfo supports the following case-insensitive options:

       --Help, -h
	   Display help and exit

       --Help-Inform
	   Display help for --Inform option

       --Help-AnOption
	   Display help for "AnOption"

       --Version
	   Display MediaInfo version and exit

       --Full, -f
	   Full information Display (all internal tags)

       --Output=HTML
	   Full information Display with HTML tags

       --Output=XML
	   Full information Display with XML tags

       --Inform=FMT
	   Template defined information display.

	   FMT is "[xxx;]Text", where xxx can be any one of General, Video, Audio, Text, Chapter, Image, or Menu. Text can be the template text,
	   or a filename in the form of file:///path

	   See --Info-Parameters for available parameters in the text. Parameters must be surrounded by "%".

       --Info-Parameters
	   Display list of --Inform parameters

       --Language=raw
	   Dislpay non-translated unique identifiers (internal text)

       --LogFile=LogFile
	   Save the output in LogFile

EXAMPLES

   Display information about a video file
	$ mediainfo foo.mkv

   Display aspect ratio
	$ mediainfo --Inform="Video;%DisplayAspectRatio%" foo.mkv
	$ mediainfo --Inform="Video;file://Video.txt" foo.mkv

       Both forms are equivalent if Video.txt contains:
	%DisplayAspectRatio%

   Display aspect ration and audio format
	$ mediainfo --Inform="file://Text.txt foo.mkv

       If Text.txt contains:

       - "Video;%DisplayAspectRatio%"
	   Then the display aspect ratio is printed out.

       - "Audio;%Format%"
	   Then the audio format is printed out.

AUTHOR

       This manual page was written by Chow Loong Jin <hyperair@debian.org> for the Debian system (but may be used by others). Permissions is
       granted to copy, distribute, and/or modify this document under the terms of the GNU General Public License, Version 3 or any later version
       published by the Free Software Foundation.

       On Debian systems, the full text of the GNU General Public License, Version 3 can be found in /usr/share/common-licenses/GPL-3.

MediaInfo 0.7.52						    2012-06-03							      MEDIAINFO(1)
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