Commands by mfr (3)

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Show bash's function definitions you defined in .bash_profile or .bashrc
If you omit the function name, the command will display all definitions

Poor man's unsort (randomize lines)

List Listen Port by numbers
Show TCP Listen ports sorted by number (bugs: IPV6 addresses not supported)

Monitor RX/TX packets and any subsquent errors
www.fir3net.com

Resize a Terminal Window
Replace 70 with the desired height. Replace 180 with the desired width. I put it in my bashrc, because by default my terminal is too small.

display a smiling smiley if the command succeeded and a sad smiley if the command failed
you could save the code between if and fi to a shell script named smiley.sh with the first argument as and then do a smiley.sh to see if the command succeeded. a bit needless but who cares ;)

test moduli file generated for openssh
this command test the moduli file generated by the command ssh-keygen -G /tmp/moduli-2048.candidates -b 2048 . The test can be long depend of your cpu power , around 5 minutes to 30 minutes

redirect stdout and stderr each to separate files and print both to the screen

Generate a ZenCart-style MD5 password hash.
ZenCart uses a MD5 with a salt to secure its passwords. If you need to forcibly change someone's password to a known value within the database, this one-liner can generate the password. Change the value of 'p' to the password you want.

Print number of mb of free ram
This will show the amount of physical RAM that is left unused by the system.


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