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Lists installed kernels
no need for rpm, no need for piping to another command. also no real fu but lacking in unnecessary complexity and distro specific commands.

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

Burn CD/DVD from an iso, eject disc when finished.
cdrecord -scanbus will tell you the (x,y,z) value of your cdr (for example, mine is 3,0,0)

Make changes in .bashrc immediately available
Simply sourcing .bashrc does not function correctly when you edit it and change an alias for a function or the other way round with the *same name*. I therefor use this function. Prior to re-sourcing .bashrc it unsets all aliases and functions.

Remove today's installed packages

Execute a command with the last parameter of a previous command
Suppose that you had change in a directory like /home/user/mycode/code, and now you need to list it, instead of type entire path again, use ls !$ to recall path and list. Useful with many commands, this is only an example. (In this case, same result can be achivied with ls .)

Download free e-books
Mask the user agent as firefox, recursively download 2 levels deep from a span host with a maximum of 1 redirection, use random wait time and dump all pdf files to myBooksFolder without creating any other directories. Host will have no way of knowing that this is a grabber script.

Email HTML content
Note, this works because smtp is running

Replicate a directory structure dropping the files
Here is how to replicate the directory structure in the current directory to a destination directory (given by the variable DESTDIR), without copying the files.

Get your Firefox bookmarks
Extracts yours bookmarks out of sqlite with the format: dateAdded|url


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