Deleting .FS and .ES recursively.

for j in `find -maxdepth 1 -name '*parallel'`; do cd $j; echo $j; for i in `find -mount -name "*.ES"`; do ls -lha $i; done; cd ..; done;

Change the ls to rm when comfortable.

Or, bigger:


for j in `find -maxdepth 1 -name '*parallel'`; do cd $j; echo $j; for i in `find -mount -name "*.ES"`; do rm $i; done; for i in `find -mount -name "*.FS"`; do rm $i; done; cd ..; done;

------------------------

The find command gives a cleaner approach:
 
find . -type f -name "*.ES" -exec ls -lha {} \;

ls -lha can be replaced with, say, rm when I'm happy the command is working as expected.

wow choppy audio

mplayer is fine; ubuntu audio is fine. WoW under wine plays a sound when the `play' button is pressed, but WoW is silent in-game.

Check sound preferences. Check the device in use. Analogue stero duplex works.
Check winecfg audio. Uncheck `use hardware acceleration'

ls colour control

http://linux-sxs.org/housekeeping/lscolors.html

flac to mp3

for file in *.flac; do flac -cd "$file" | lame -h - "${file%.flac}.mp3"; done

UPDATE

I used, `-h' above. Different conversion is possible with,

for file in *.flac; do flac -cd "$file" | lame --noreplaygain -q 0 --vbr-new - "${file%.flac}.mp3"; done

vbr: automatically choose bit rate to achieve a `quality': 4 is default (0 being highest,
9 being lowest).
Turn off level adjustment for each track. I can hear clipping, thank you, and will turn the level down if required.
-q 0 : highest quality encoding.

python image cropping ( crop )

import Image
a = Image.open('screenshot-20110127@110832.png')
b = a.crop((100, 100, 400, 400)) # left, top, right, bottom.
b.save('output.png')

or, say,

import os, Image
a = os.listdir(os.getcwd())
# List of paired elements: [[image, filename], [image, filename], ...]
b = [[Image.open(i), i] for i in a if 'screenshot' in i]
c = [[i[0].crop((400, 312, 1410, 950)), i[1]] for i in b] # crop
[i[0].save(i[1][:-3] + 'new.png') for i in c] # save with new filenames.

ramdisk

from linux screw.

mkdir /tmp/ramdisk; chmod 777 /tmp/ramdisk
sudo mount -t tmpfs -o size=2048M tmpfs /tmp/ramdisk

or, use /dev/shm

even easier.

Potterton flamingo 20-30