Moving Directories which have a file of interest.

This command looks for files that have a ".ape" extension. It then takes the parent directory and moves it (the directory) to another location.

find . -name "*.ape" -type f -exec dirname {} \; | uniq | while read each; do mv "$each" dir2/; done;

How to mark all of your mail as read.

In Gmail, Create a filter like this

Matches: to:(*)
Do this: Skip Inbox, Mark as read

A one liner to rename files sequentially

This one line script will rename image files into nice sequential files such as

IMG_000.JPG
IMG_001.JPG
etc.

EII=0; for each in `ls -rt`; do mv $each IMG.`printf "%03d" $EII`.JPG; EII=`expr $EII + 1`; done;

Screencasting in Linux

I discovered a very useful command to record a desktop window using FFMPEG.
Credits to egrounds.org

Using the video captured from FFMPEG, and audio captured from an external Zoom H1 digital recorder,
I can combine these two recordings into a decent screencast.



#!/bin/sh

INFO=$(xwininfo -frame)
WIN_GEO=$(echo $INFO | grep -oEe 'geometry [0-9]+x[0-9]+' | grep -oEe '[0-9]+x[0-9]+')
WIN_XY=$(echo $INFO | grep -oEe 'Corners:\s+\+[0-9]+\+[0-9]+' | grep -oEe '[0-9]+\+[0-9]+' | sed -e 's/+/,/' )

echo $WIN_GEO
echo $WIN_XY

ffmpeg -f x11grab -r 15 -s $WIN_GEO -i :0.0+$WIN_XY -vcodec mpeg4 -sameq -y /tmp/$1.avi