Commands by cifr (2)

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Convert control codes to visible Unicode Control Pictures
Converts control codes and spaces (ASCII code ≤ 32) to visible Unicode Control Pictures, U+2400 ? U+2420. Skips \n characters, which is probably a good thing.

Find the package that installed a command

My Git Tree Command!
this creates a tree of your branch merges. very useful if you want to follow the features you add.

Set laptop display brightness
Run as root. Path may vary depending on laptop model and video card (this was tested on an Acer laptop with ATI HD3200 video). $ cat /proc/acpi/video/VGA/LCD/brightness to discover the possible values for your display.

What is my public IP address
It's easier then the listed command, I'm thinking. but doesn't matter much--its closer to personal preference really.

View network activity of any application or user in realtime
The "-r 2" option puts lsof in repeat mode, with updates every 2 seconds. (Ctrl -c quits) The "-p" option is used to specify the application PID you want to monitor. The "-u' option can be used to keep an eye on a users network activity. "lsof -r 2 -u username -i -a"

gpg encrypt a file
gpg command to encrypt a file on the command line.

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"

Get your mac to talk to you
Very entertaining when run on someone elses machine remotely ;)

Notepad in a browser (type this in the URL bar)
It doesn't save your notes, but it's great for jotting something down quickly.


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