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Here are some tips to save uncountable hours, eye strain and wristache by doing things in batch mode rather than pointing and clicking.

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Using GPG to password encrypt your personal files

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Have a self-updating photo album with ImageMagick and PHP

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Using DAR for your backups

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Easily poll several mailboxes

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Auxiliary bash functions

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Using GPG to password encrypt your personal files

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Type 'gpg --version' on the command line to check if you have GnuPG installed on your system. If you only get a message similar to:

bash: gpg: command not found

then you may click here to download GnuPG - The GNU Privacy Guard.

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Encode script

Usage: gpgenc [-rhv] [-p password] [entryfile1] [entryfile2...]
 -k                 use asymetric coding to self
 -p password        give password on command line
 -r                 recurse into subdirs
 -l                 log password in system log - use with extreme care
 -v                 verbose, more comments displayed
 -h                 this help

 Encodes files and directories given as arguments using gpg symetric encoding.
 Files to encode must not begin with _
 A '_' character is prepended to the encoded file's name.
 Without args, encodes all non crypted files in current directory.

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Decode script

Usage: gpgdec [-rlshv] [-p password] [entryfile1] [entryfile2...]
 -p password        give password on command line
 -r                 recurse into subdirs
 -l                 log password in system log - use with extreme care
 -s                 success : return at first failed decoding
 -v                 verbose, more comments displayed
 -h                 this help
 Decodes files and directories given as arguments using gpg symetric decoding.
 Encoded files must begin with _
 The initial '_' character is trimmed from the encoded file's name.
 Without args, decodes all crypted files in current directory.

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Have a self-updating photo album with ImageMagick and PHP

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If you have a web page were you display and share photographs, you don't need to bother editing it. PHP and ImageMagick will do that for you.

Type 'mogrify -version' on the command line to check if you have ImageMagick installed on your system. If you only get a message similar to:

bash: mogrify: command not found

then you should click here to download ImageMagick in order to convert, edit, and compose images.

Safely scale your pictures without overwriting the originals

Usage: mogscale [-hatv] [-l ratio] [-s ratio] [-d targetdir] file1 [file2 ...]
 -a              add slinks to thumbnails and source pictures in the current directory
 -l factor       enlarge the picture by factor x prepending lx_ to the new file
 -s factor       shrink the picture by factor x prepending sx_ to the new file
 -q factor       quality factor, for jpg
 -t              test, do no file operation
 -v              verbose, more comments displayed
 -d directory    all scaled files will go to directory. Default is the source file's directory.

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Once you have run mogscale, upload the following files on the same directory than the images ( php server required for your website of course).

• photoalbum2.php
• authordata.php
• specific.php

Don't forget to edit the two last files to reflect your specific data (see comments within those files)

Your page will display a small image linking to the full sized photograph

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Using DAR for your backups

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In construction

get Dar at dar's home page

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Easily poll several mail boxes on the command line.

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In construction

Use fetchmail to poll all your mailboxes and download your messages.

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