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You can choose these mirror servers to get gpg keys, if the official one ever goes offline
wwwkeys.en.pgp.net #(replace with your country code fr, en, de,etc)
Removes piling kernels from /boot, save the current one.
This command DOES NOT remove the 'linux-image-generic' package, so you'll continue getting kernel updates
Removes the package, 'packagename' in the example ,from your system. '-R' is the actual removal option, 'n' is for removing backup configuration files saved by pacman, and 's' is for removing the dependencies of the given package which are not required by other packages. pacman does not remove configuration files, etc. created by the package.
Clears the package cache of all packages, installed and uninstalled packages. Do NOT USE if you might want to downgrade a package later.
Clears the package cache of all uninstalled packages. Does not remove package configuration files in user's home directory.
Requires 'reflector' package from official repository. '5' in the example is the number of mirrors you want in the mirrorlist, could be other numbers of course.
This is the first version of the Sublime Text 2 packaging so there might be bugs.
View all memcache traffic
You have openjdk and sun java installed. Many of your java plugins will not work properly. Something called IcedTea (the java web plugin) keeps crashing. Run this and select sun java to use sun java.
A much quicker and (not dirtier) option. use the man page for help. On linux/ubuntu you will need to `sudo apt-get -y install arp-scan`.
in Debian-based systems apt-get could be limited to the specified bandwidth in kilobytes using the apt configuration options(man 5 apt.conf, man apt-get). I'd quote man 5 apt.conf:
"The used bandwidth can be limited with Acquire::http::Dl-Limit which accepts integer values in kilobyte. The default value is 0 which deactivates the limit and tries uses as much as possible of the bandwidth..."
"HTTPS URIs. Cache-control, Timeout, AllowRedirect, Dl-Limit and proxy options are the same as for http..."
-T = traceroute
-V = verbose
--tr-stop = exit when target is reached
-n = don't do reverse lookups (faster)
-2 = udp
-p 53 = destination port 53 (dns), change to your needs
Useful when trying to debug a network with complex routing rules and/or multiple gateways.
find the files locked by rcs utility
If you spot a dubious looking cp command running you can use this command to view what is being copied and to where.
1234 is the PID of the cp command being passed to the lsof utility.
3r.*REG will display the file/directory that is being read/copied.
4w.*REG will display the destination it is being written to.
An alternative which does not require to be root
This one is a little bit easier for those of us that aren't always root.
after that, you can launch bash script in your usb drive in FAT32.
I used this to mass install a lot of perl stuff. Threw it together because I was feeling *especially* lazy. The 'perl' and the 'module' can be replaced with whatever you like.
kill all the (-y) from the interface eth1, not touching the legitimate server with 00:11:22:33:44:55
Add the BackTrack repositories to your Debian based GNU/Linux distribution. Thanks to http://it-john.com/home/technology/linux-technology/add-back-track-4-repo-to-ubuntu/
Will limit the amount of CPU time Grooveshark the greedy yet useful Adobe Air app will have.
Leaves the UI lagging a little, but crucially does not ruin the audio.