Commands by smiles (1)

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list block devices
Shows all block devices in a tree with descruptions of what they are.

Look at your data as a greymap image.
Keep width to a power of 2 to see patterns emerge. 512 is good. So is 4096 for huge maps. PNM headers are super basic. http://netpbm.sourceforge.net/doc/pbm.html

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" }

check open ports without netstat or lsof

An alarm clock using xmms2 and at
Nice little alarm clock to wake you up on time (hopefully). You can also do 'echo "vlc path/to/song" | at 6:00

get bofh excuse from a trusted source :-)

Check wireless link quality with dialog box
The variable WIRELESSINTERFACE indicates your wireless interface

Verify if ntpd is working properly
Used to verify if Network Time Protocol daemon is working properly.

I finally found out how to use notify-send with at or cron
You can write a script that does this : $remind []

How To Get the Apache Document Root


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