Hacking · Things I've Learned

Bourne Shell Introspection

So I was thinking about how to refactor our custom Linux and Solaris init scripts at work. The way FreeBSD does it is to have the scripts in /etc/rc.d define variables with the commands to execute, e.g., start_cmd=’/usr/sbin/foobard’ stop_cmd=’kill `cat /var/run/foobar.pid`’ run_rc_command “$1″ where $1 is “start”, “stop”, or whatever, and run_rc_command is a function… Continue reading Bourne Shell Introspection

Hacking · Perl

Evil Hack of the Day

MacOS plist XML files are evil; even more so than regular XML. For instance, my iTunes library file consists mostly of entries like: <key>5436</key> <dict> <key>Track ID</key><integer>5436</integer> <key>Name</key><string>Getting Better</string> <key>Artist</key><string>The Beatles</string> <key>Composer</key><string>Paul McCartney/John Lennon</string> <key>Album</key><string>Sgt. Pepper’s Lonely Hearts Club Band</string> … </dict> You’ll notice that there’s no connection between a key and its value, other… Continue reading Evil Hack of the Day