Month: September 2005
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Emacs wiki
I just stumbled upon http://www.emacswiki.org/cgi-bin/wiki/SiteMap, which looks like a very nice place. I found a newer version of longlines.el, for example.
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Converting AAC audio files to mp3
This command will convert an AAC audio file to an mp3 audio file: ffmpeg -i input.m4a -acodec mp3 -ac 2 -ab 128 output.mp3 Batch conversion can be done with for i in *.m4a; do ffmpeg -i “$i” -acodec mp3 -ac 2 -ab 128 “${i%m4a}mp3”; done Sometimes it really is simple 🙂
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Longest Common Prefix in perl
I can’t help finding this slightly elegant. Unfortunately I no longer remember where the idea came from. #!/usr/bin/perl use strict; use warnings; sub longest_common_prefix { my $prefix = shift; for (@_) { chop $prefix while (! /^$prefix/); } return $prefix; } print longest_common_prefix(@ARGV), ” “;