Gareth codes

How to extract audio from a video via ffmpeg?

FFmpeg is one of the core tools you don’t know you need until you need it. FFmpeg is the leading multimedia framework, able to decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created. It supports the most obscure ancient formats up to the cutting edge. No matter if they were designed by some standards committee, the community or a corporation.

How to more easily open and close local files with Python?

The with statement in Python allows you to open and manipulate a file and it will take care of closing it for you. Very handy stuff. gyaresu@shadowrun:~/programming/projects/violent python|⇒ echo "blah stuff wooble" > thing.txt gyaresu@shadowrun:~/programming/projects/violent python|⇒ ipython Python 2.7.2 (default, Oct 11 2012, 20:14:37) Type "copyright", "credits" or "license" for more information.

How to remove hashes at the start of lines in vim?

So if you want to remove hashes from the start of a section of lines, in vim normal mode hit CTRL-v and then just use direction keys to select the area you want to remove. Now hit d. more... Dec 15, 2012

How to add hashes to a block of code in vi?

` :544,600s/^/#` Put a hash at the start of every line from 544-600.

How to kill a specific pane in a tmux window?

Problem: Laptop goes to sleep while connected to a remote host. Upon resume one can’t just ^c or ^d to get back to the local prompt. It’s just frozen. Solution: meta-q in tmux to get the pane number highlighted then tmux killp -t n ‘n’ being whichever pane you want to kill. more... Aug 2, 2012