Nova compactação e extensão de pacotes Slackware

A partir do Slackware Current, atualizei os pacotes pkgtools e slackpkg. Instalei o pacote xz-4.999.8beta-i486-1 para não ocorrer o seguinte erro:

external compression utility xz missing

Disabling my hd noise problem (laptop)

$ hdparm -I /dev/sda | grep "Advanced power management level"

Advanced power management level: 128

$ hdparm -B254 /dev/sda

Advanced power management level: disabled

Multimidia:Extracting audio

$ mplayer -dumpaudio foo.flv -dumpfile bar.mp3

or

$ ffmpeg -i foo.flv -ab 128 -ar 44100 bar.mp3

also

$ mplayer -dumpstream http://STREAM_HOST -dumpfile foobar.mp3

or

$ ffmpeg -i http://STREAM_HOST -ab 128 -ar 44100 foobar.mp3

Perl: Read each 2048 bytes from a file

MySQL Reset Root Password

Referência: http://www.cyberciti.biz/faq/mysql-reset-lost-root-password/

Use Gmail Account To Relay Email From a Shell Prompt

Referência: http://www.cyberciti.biz/tips/linux-use-gmail-as-a-smarthost.html

Perl Match and Replace in multiple lines

Referência: Referência: SED Script to remove a few lines out of a file