Note:The rename script on this page gives files all the same names with different numbers appended. I have a separate script if you want to rename a jpg by timestamp. Summary Here are a couple of perl scripts that run on linux machines with perl 5 or better installed. I’ve found them very useful for processing…
Summary Below is a Perl script that can be used to adjust the brightness and contrast for a whole directory of JPG photos automatically. I searched for a while on using the GIMP to automate brightness and contrast changes, but it seemed too complicated for my purposes. I found one GIMP plug-in already written. It installed, but didn’t…
Note: Published 2016-08-31. Summary Conclusion: The Nook Color hardware makes a nice tablet with a really sharp screen at a reasonable price. There seems to be a catch about the version of the Nook Color that you get. Apparently some will NOT boot from the SD card. Research this before tryin it. My Nook Color has…
Open Document format Open source office doc. Much better for printing. cal = Calendar.Prints a calendar for [[month] year].cat = Catenate.Joins files end to end or send file to standard output. cd = Change Directory.”..” is one directory up. Without a path, sends you home.chgrp = Change Group.Changes the group associated with file-list. Group is the name or group…
Summary This page has a brief explanation of a possible way to increase the resolution of your unsupported / poorly supported video card under linux by using the generic vesa driver. A sign of this is only getting 800×600 or 640×480 pixels when your monitor can handle a greater resolution. Background Trying to install Linux…
Update 2016. I still use these scripts to process photos. Summary Below are three small perl scripts that makes use of the exiv2 application to manipulate EXIF data in a JPG file. They are single loops that can change the value of the meta data associated with a JPG file (the data about camera, shutter…
Created 2015-08. Xubuntu 14.04.2. Update 2023 I think this page is deprecated, at least for anyone using a Ubuntu-based Linux distribution. Sometime in the last few years, the automatic software updater started to add a second round of updates after the kernel files were updated. It appears after the restart and shows a window of…
Update: 2012-07-12 Note on Audio Software: I have only gotten this method to work using the ALSA sound system. The last time it worked in Ubuntu was 8.04. I have successfully repeated the process using Debian 6.0. Background This page contains notes on making a simple digital mp3 recording from an analog cassette. The method would be…