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check open ports without netstat or lsof

A fun thing to do with ram is actually open it up and take a peek. This command will show you all the string (plain text) values in ram

awk change field separator
GNU Awk 3.1.4

Testing ftp server status
I must monitorize a couple of ftp servers every morning WITHOUT a port-scanner Instead of ftp'ing on 100 ftp servers manually to test their status I use this loop. It might be adaptable to other services, however it may require a 'logout' string instead of 'quit'. The file ftps.txt contains the full list of ftp servers to monitorize.

Find all files with colons and replace with underscores; current directory and below (recursive).

shell function to make gnu info act like man.
I use this alias in my bashrc. The --vi-keys option makes info use vi-like and less-like key bindings.

Show a listing of open mailbox files (or whatever you want to modify it to show)

Put public IP address in a variable

Make the "tree" command pretty and useful by default
I got really tired of having tree always show me tons of .svn and .git stuff that I don't care about. With this alias, "tree" uses pretty colors, snazzy line graphics, and ignores any source control and package mumbojumbo. (Customize the *.*.package glob, of course.)

Go to the Nth line of file [text editor]
This is not printing, real editing using the text editor.


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