Commands by keturn

Commands by keturn (3)

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Losslessly rotate videos from your phone by 90 degrees.

Takes all the .3gp files in the directory, rotates them by 90 degrees, and saves them in the lossless ffv1 encoding. If this rotates in the wrong direction, you may want transponse=1 Re-encoding to ffv1 may result in a significant increase in file size, as it is a lossless format. Other applications may not recognize ffv1 if they don't use ffmpeg code. "huffyuv" might be another option for lossless saving of your transformations. The audio may be re-encoded as well, if the encoding used by your 3gp file doesn't work in a avi container.
This is sample output - yours may be different.
5

mkdir rotated; for v in *.3gp; do ffmpeg -i $v -vf transpose=2 -vcodec ffv1 rotated/${v/3gp/avi} ; done

keturn · 2012-02-04 18:20:04 7
Restore the keyboard for qwerty users.

Restores the keyboard so your partner who expects the keys to correspond to what they're labelled can type (in qwerty).
This is sample output - yours may be different.
-2

setxkbmap us

keturn · 2010-01-23 04:08:46 5
Set X keymap to dvorak and fix the Ctrl key.

What to type to fix the keyboard when it's all qwerty and/or the modifier key to the left of the 'a' is doing something unexpected. In addition, I've also been known to use the altwin:meta_win and compose:ralt flags.
This is sample output - yours may be different.
0

setxkbmap dvorak '' ctrl:nocaps

keturn · 2010-01-23 04:04:59 5

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print first n characters of any file in human readble form using hexdump

Usefull to determine unknown file type

Displays user-defined ps output and pidstat output about the top CPU or MEMory users.

It grabs the PID's top resource users with $(ps -eo pid,pmem,pcpu| sort -k 3 -r|grep -v PID|head -10) The sort -k is sorting by the third field which would be CPU. Change this to 2 and it will sort accordingly. The rest of the command is just using diff to display the output of 2 commands side-by-side (-y flag) I chose some good ones for ps. pidstat comes with the sysstat package(sar, mpstat, iostat, pidstat) so if you don't have it, you should. I might should take off the timestamp... :|

grep certain file types recursively

-exec works better and faster then using a pipe

happened to find this not bad software to keep my files and folders safe! Even the free trial version has the fantastic functions to protect any private files from being seen by anyone except me. With it I can encrypt, hide or lock anything I want, amazin

I noticed some spammer posted an advertisement here for "not bad" encryption. Unfortunately, their software only runs under Microsoft Windows and fails to work from the commandline. My shell script improves upon those two aspects, with no loss in security, using the exact same "military-grade" encryption technology, which has the ultra-cool codename "ROT-13". For extra security, I recommend running ROT-13 twice.

quickly rename a file

Start a local web server in the current directory on a random dynamic port.

Randomize lines (opposite of | sort)

Randomizes a file. The opposite of sort is sort -R!

Umount only the NFS related to 'string'

Sometimes, you have a lot of NFS in the server and you can't or shouldn't use umount -a. Whis this command, you only umount the fs related to the 'string'

convert pdf into multiple png files

syntax for resolution is: (see "man gs" for further informations) -rnumber -rnumber1xnumber2

Pretty-print user/group info for a given user

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