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Phrack 66 is out, but the .tar.gz is not there yet on phrack.org's website
Nice reading in the morning on the way to work, but sadly the .tar.gz for the whole issue 66 is not on phrack's website yet. So use wget to download.

Optimize PDF documents

Make window transparent (50% opacity) in Gnome shell
Click window to change its opacity. Source: https://unix.stackexchange.com/a/494289

Watch the progress of 'dd'
run this in another terminal, were xxxx is the process ID of the running dd process. the progress will report on the original terminal that you ran dd on

Find usb device in realtime
Using this command you can track a moment when usb device was attached.

Report bugs in Ubuntu
As of 10.04 LTS, you need to use this command-line to reports bugs to the launchpad.net tracking system (you need a launchpad acct for this to work). This command is preferred over using the website because it collects/sends info about your system to help developers. ubuntu-bug is a symlink to apport-bug which sees if KDE/Gnome is running and calls apport-gtk/apport-kde dialogs, otherwise apport-cli, so you can fill out a bug report. First run 'ubuntu-bug' without args to see a list of known symptoms. If there's no matching symptom, or you know which package is to blame, then run 'ubuntu-bug <package>'. If the process is still running, use 'ubuntu-bug <PID>'

small CPU benchmark with PI, bc and time.
$ # 4 cores with 2500 pi digits $ CPUBENCH 4 2500 $. $ every core will use 100% cpu and you can see how fast they calculate it. $ if you do 50000 digitits and more it can take hours or days

Rename files in batch

Convert file type to unix utf-8
converts encoding of a file to unix utf-8 useful for data files that contain what would be usable ascii text but are encoded as mpeg or some other encoding that prevents you from doing common manipulations like 'sed'

Isolate file name from full path/find output
Quick method of isolating filenames from a full path using expansion. Much quicker than using "basename"


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