Commands by WilliamRiley (0)

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calulate established tcp connection of local machine
If you want prepend/append text just wrap in echo: $echo Connected: `netstat -an|grep -ci "tcp.*established"`

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

One-liner to generate Self-Signed SSL Certificate+Key without any annoying prompts or CSRs
Handy if you want to quickly generate a self-signed certificate. Also can be used in your automated scripts for generating quick-use certificates.

Skip filenames with control characters, a.k.a tab,newline etc

Test disk I/O
Especially useful to gauge the performance of a VPS.

Stream your desktop to a remote machine.
This allows you to stream your desktop using vlc to another computer, in this case, 192.168.1.2 on your local network. If you have vlc installed, your all set to try this out. To view your own desktop, just run "vlc screen://" For more info, see http://nerdlogger.com/2008/01/08/stream-your-linuxwindowsmac-desktop-as-video-using-vlc/

Makefile argument passing
This would allow reference of $(VAR) (if defined) with the value 'foobar' within the Makefile.

Remove all unused kernels with apt-get
Note the double space: "...^ii␣␣linux-image-2..." Like 5813, but fixes two bugs: [1]This leaves the meta-packages 'linux-headers-generic' and 'linux-image-generic' alone so that automatic upgrades work correctly in the future. [2]Kernels newer than the currently running one are left alone (this can happen if you didn't reboot after installing a new kernel). I'm bummed that this took 228 characters. I'd like to see a simpler version.

List last opened tabs in firefox browser

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"


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