Commands using sudo (537)

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If (and only if) the variable is not set, prompt users and give them a default option already filled in.
The read command reads input and puts it into a variable. With -i you set an initial value. In this case I used a known environment variable.

Fix Ubuntu's Broken Sound Server
Ever since the switch to pulseaudio, Ubuntu users including myself have found themselves with no sound intermittently. To fix this, just use this command and restarts firefox or mplayer or whatever.

finds the c files with lines containing 'mcs', in the folders under the current folder

Stop Flash from tracking everything you do.
Brute force way to block all LSO cookies on a Linux system with the non-free Flash browser plugin. Works just fine for my needs. Enjoy.

Find Mac address

Find the package that installed a command

Pronounce an English word using Merriam-Webster.com
The original was a little bit too complicated for me. This one does not use any variables.

auto terminal title change
above line in .bash_profile will give you window title in putty or terminal client when you login to your remote server

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" }

Force hard reset on server
Useful when you have some wrong on a server (nfs freeze/ immortal process)


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