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Automatically tunnel all ports of running docker instances in boot2docker
It requires https://jqplay.org/, that comes with brew: brew install jq

Remove sound from video file using mencoder
Remove sound from input video file, output video stream is copied from input video stream, with no audio.

Create a new file

set history file length
set how many commands to keep in history Default is 500 Saved in /home/$USER/.bash_history Add this to /home/$USER/.bashrc HISTFILESIZE=1000000000 HISTSIZE=1000000

Count the number of characters in a string from the standard input.

Top 10 Memory Consuming Processes

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"

Zip a directory on Mac OS X and ignore .DS_Store (metadata) directory
If you want to generate a cross-platform compatible zip file and ignore the Finder's hidden metadata directory

Listing today’s files only

rename all jpg files with a prefix and a counter


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