Commands by alanmark544 (0)

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Encrypt every file in the current directory with 256-bit AES, retaining the original.
The password is stored in the password file, which obviously must be kept secure, encrypted later with gpg, deleted, or whatever you prefer. To decrypt: $ openssl enc -d -aes-256-cbc -salt -in filename.enc -out filename -pass file:/path/to/password-file Alternative ciphers can be used, of course.

Get names of files in /dev, a USB device is attached to
This command lists the names of your USB devices connected and what file in /dev they are using. It's pretty useful if you don't have an automount option in your desktop or you don't have any graphical enviroment.

run shell with your commandlinefu.com's favourites as bash_history
This makes your commandlinefu.com's favorites appear as most recent commands in your history.

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Convert seconds to [DD:][HH:]MM:SS
Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

DVD-Rip
Make backups of your home DVDs easily. Other: mencoder dvd://1 -o "$targetDir/$dvdTitle.avi" -aid "$audioID" -ovc x264 -x264encopts qp=26:frameref=3:bframes=15:direct_pred=auto:cabac:weight_b:partitions=all:8x8dct:me=esa:me_range=24:subq=7:mixed_refs:trellis=2:bitrate=1000:nofast_pskip:threads=0 -oac mp3lame

Open a manpage in the default (graphical) web browser
An easy alias for opening a manpage, nicely HTML formatted, in your set internet browser. If you get a "command exited with status 3" error you need to install groff.

How long has this disk been powered on

Send command to all terminals in a screen session

climagic's New Year's Countdown clock
This is the 140 character long new year's countdown timer that was posted to the climagic account on twitter and identi.ca. There are saner ways of doing this of course, but probably none of those would fit. Uses the figlet command, but of course you can replace figlet with just echo if you want.

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