Check These Out
This command is useful to recursively make executable all "*.sh" files in a folder.
This command is useful to apply chmod recursively in a determined kind of file.
The command is useful when, e.g., booting an existing system with a rescue or installation CD where you need to chroot into the hard-disk and be able to do stuff which accesses kernel info (e.g. when installing Ubuntu desktop with LVM2 you need to mount and chroot the hard disk from a shell window in order to install packages and run initramfs inside chroot).
The command assumes that /mnt/xxx is where the chroot'ed environment's root file system on the hard disk is mounted.
This was useful to generate random passwords to some webpage users, using the sample code, inside a bash script
Newer versions of the flashplayer browser plugin delete the tmp flash video immediately after opening a filehandle to prevent the user from "exporting" the video by simply copying the /tmp/FlashXYZ file. This command searches such deleted flash videos and creates symbolic links to the opened filehandle with the same name as the deleted file.
This allows you to play your flash-videos (from e.g. youtube) with e.g. mplayer or copy the buffered video if you want to keep it.
This takes a picture (with the web cam) every 5 minutes, and send the picture to your e-mail.
Some systems support
mail -a "References: "
so that all video surveillance emails are grouped in a single email thread.
To keep your inbox clean, it is still possible to filter and move to trash video surveillance emails (and restore these emails only if you really get robbed!)
For instance with Gmail, emails sent to me+trash@gmail.com can be filtered with "Matches: DeliveredTo:me+trash@gmail.com"
Converts every *.eps file to a *.pdf file
Create a binary clock.
Copies an entire hierarchy of mailboxes from the named POP3/IMAP/etc. source to the named destination. Mailboxes are created on the destination as needed. NOTE: The 'mailutil' is Washington's University 'mailutil' (apt-get install uw-mailutils). More examples
$ mailutil transfer {imap.gmail.com/ssl/user=you@gmail.com}INBOX Gmail/ ; mailutil check imap.gmail.com/ssl/user=you@gmail.com}\[Gmail\]/Spam
If you use the utility in the first, append -v|-d flag(s) to the end the commands above (man mailutil).
You need python-scapy package