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

grep processes list avoiding the grep itself
Trick to avoid the form: grep process | grep - v grep

Display which user run process from given port name
Display which user run process from given port name

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"

Instant mirror from your laptop + webcam (fullscreen+grab)
This directly puts the "mirror" into fullscreen, and lets you take photos by pressing the 's' key. I bet appearance conscious people will have keyboard shortcut for this command by now.

Install pip with Proxy
Installs pip packages defining a proxy

Grab the first 3 octets of your ip addresses
For machines that have many ip blocks spanning different Class C's, this will show which ones.

grep apache access.log and list IP's by hits and date - sorted

Put split files back together, without a for loop
After splitting a file, put them all back together a lot faster then doing $cat file1 file2 file3 file4 file5 > mainfile or $for i in {0..5}; do cat file$i > mainfile; done When splitting, be sure to do split -d for getting numbers instead of letters

split a string (2)


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