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find the longest command in your history

cat ~/.ssh/id_rsa.pub | ssh user@site.com "cat - >> ~/.ssh/authorized_keys"
You'll want to use this for passwordless logins. Same as ssh-copy-id, if you don't have it on your system.

Deleting / Ignoring lines from the top of a file
Output lines starting at line 2.

Remove security limitations from PDF documents using ghostscript (for Windows)
#4345 also works under windows

Create a file and manipulate the date

Create QR codes from a URL.
like 7300, but doesn't clutter your working directory with old qr.*.png files. This will get the QR barcode, and send it right into ImageMagick's 'display' tool. Usage is the same as 7300; just call this function followed by the URL: $ qrurl http://xkcd.com

Run local bash script on remote server
Run local scripts on remote server. "-T Disable pseudo-tty allocation"

Get full from half remembered commands
Show all commands having the part known by you. Eg: $apropos pdf | less

Insert the last argument of the previous command

A command's package details
In Debian based distros, this command will list 'binutils' package details which contains 'nm' command. You can replace 'nm' to any other command.


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