du only accepts lines ending with a NUL, which can be a pain to create. This solves that issue.

The `-q' arg forces tail to not output the name of the current file

You can tell GCC to automatically select optimization commands and produce optimized code for the local machine (the one compiling the code), but you can't normally see what switches have been selected and used unless you append a "-v" and pause compilation. Show Sample Output

Shows a less detailed output, made only of the process tree and their pids.

This will download all the phracks! Enjoy!

If you're like some individuals who rely on ndiswrapper and cannot use kismet, this command may be of service. watch -n .5 "iwlist wlan0 scan | egrep 'ESSID|Encryption'" Or... watch -n .5 "iwlist wlan0 scan | egrep 'ESSID|Encryption' | egrep 'linksys'" :-) Hopefully you'll find some dd-wrt compatible routers.

Today I learned that commandlinefu.com is not a alone in its conquest for further the knowledge about the command line. Allow me to introduce you to http://shell-fu.org/

doesn't require "at", change the "2h" to whatever you want... (deafult unit for sleep is seconds)

#Usage: watch timeinsecond "command" Show Sample Output

Stores the currently active iptables rules to a file that will be applied upon reboot

If you don't save the rule set it won't be applied during a reboot

Locally watch MySQL process list update every 5s on a remote host. While you watch pipe to a file. The file out put is messy though but hey at least you have a history of what you see.

Enable 'sleep' function in Windows environment where this does not exist, although not exact in time. (there is a delay for each ping) This is a simple way to separate commands with a time-period. Show Sample Output

Character: "?" is the Byte Order Mark (BOM) of the Unicode Standard. Specifically it is the hex bytes EF BB BF, which form the UTF-8 representation of the BOM, misinterpreted as ISO 8859/1 text instead of UTF-8. Show Sample Output

Whereas ^V is CTRL-V. converts a dos file to unix by removing 0x13 characters Show Sample Output

deletes to the end of the buffer Show Sample Output

This does the same thing as many of the 'grep' based alternatives but allows a more finite control over the output. For example if you only wanted the process ID you could change the command: ps -ef | awk '/mingetty/ && !/awk/ {print $2}' If you wanted to kill the returned PID's: ps -ef | awk '/mingetty/ && !/awk/ {print $2}' | xargs -i kill {} Show Sample Output