This is just a proof of concept: A FILE WHICH CAN AUTOMOUNT ITSELF through a SIMPLY ENCODED script. It takes advantage of the OFFSET option of mount, and uses it as a password (see that 9191? just change it to something similar, around 9k). It works fine, mounts, gets modified, updated, and can be moved by just copying it. USAGE: SEE SAMPLE OUTPUT The file is composed of three parts: a) The legible script (about 242 bytes) b) A random text fill to reach the OFFSET size (equals PASSWORD minus 242) c) The actual filesystem Logically, (a)+(b) = PASSWORD, that means OFFSET, and mount uses that option. PLEASE NOTE: THIS IS NOT AN ENCRYPTED FILESYSTEM. To improve it, it can be mounted with a better encryption script and used with encfs or cryptfs. The idea was just to test the concept... with one line :) It applies the original idea of http://www.commandlinefu.com/commands/view/7382/command-for-john-cons for encrypting the file. The embedded bash script can be grown, of course, and the offset recalculation goes fine. I have my own version with bash --init-file to startup a bashrc with a well-defined environment, aliases, variables. Show Sample Output
Useful if non-ascii characters in filenames have been improperly encoded. Replace "PROBLEM" with the incorrect characters (e.g. 'é'), and "FIX" with the correct ones (e.g. '?').
Get gzip compressed web page using wget. Caution: The command will fail in case website doesn't return gzip encoded content, though most of thw websites have gzip support now a days.
This command gives you the charset of a text file, which would be handy if you have no idea of the encoding. Show Sample Output
http://www.mplayerhq.hu/DOCS/HTML/en/menc-feat-mpeg.html
MEncoder can create MPEG (MPEG-PS) format output files. Usually, when you are using MPEG-1 or MPEG-2 video, it is because you are encoding for a constrained format such as SVCD, VCD, or DVD.
To change MEncoder's output file format, use the -of mpeg option.
Creating an MPEG-1 file suitable to be played on systems with minimal multimedia support, such as default Windows installs:
mencoder input.avi -of mpeg -mpegopts format=mpeg1:tsaf:muxrate=2000 \
-o output.mpg -oac lavc -lavcopts acodec=mp2:abitrate=224 -ovc lavc \
-lavcopts vcodec=mpeg1video:vbitrate=1152:keyint=15:mbd=2:aspect=4/3
Really helpfull when play with files having spaces an other bad name. Easy to store and access names and path in just a field while saving it in a file. This format (URL) is directly supported by nautilus and firefox (and other browsers) Show Sample Output
Like the original command, but the -f allows this one to succeed even if the website returns uncompressed data. From gzip(1) on the -f flag: If the input data is not in a format recognized by gzip, and if the --stdout is also given, copy the input data without change to the standard output: let zcat behave as cat.
I still don't know why mutt (or offlineimap or whatever in between), is borking the encoding of my files, but this fixes it. Show Sample Output
Also works with files:
cat file
Hello world
base64 file
SGVsbG8gd29ybGQK
To decrypt use the -d option:
echo SGVsbG8gd29ybGQK | base64 -d
Hello world
Show Sample Output
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