Commands using sudo

-R Recursively change attributes of directories and their contents.

+i to set the immutable bit to prevent even root from erasing or changing the contents of a file.

Replace PACKAGE with desired package name.

Found here: http://mikebeach.org/2011/04/undo-apt-get-build-dep/

Normally when a site is blocked through /etc/hosts, traffic is just being redirected to a non-existent server that isn't going to respond. This helps get your point across a little more clearly than a browser timeout.

Of course you could use any number of codes: http://en.wikipedia.org/wiki/List_of_HTTP_status_codes

Obviously, this command can be added to init-rc.d, and more sophisticated responses can be given. Seems noteworthy to mention that the information sent from the browser can be parsed using the bash READ builtin (such as 'while read -t 1 statement; do parsing'), and the connection stays open until the script exits. Take care that you must use EXEC:'bash -c foo.sh', as 'execvp' (socat's method for executing scripts) invokes 'sh', not 'bash'.

Benefit is that it doesn't make you keep the terminal open.

I'll let Slayer handle that. Raining Blood for your pleasure.

Same as 7272 but that one was too dangerous

so i added -P to prompt users to continue or cancel

Note the double space: "...^ii␣␣linux-image-2..."

Like 5813, but fixes two bugs: [1]This leaves the meta-packages 'linux-headers-generic' and 'linux-image-generic' alone so that automatic upgrades work correctly in the future. [2]Kernels newer than the currently running one are left alone (this can happen if you didn't reboot after installing a new kernel).

You can choose these mirror servers to get gpg keys, if the official one ever goes offline

keyserver.ubuntu.com

pool.sks-keyservers.net

subkeys.pgp.net

pgp.mit.edu

keys.nayr.net

keys.gnupg.net

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`.

Trickle is here: http://monkey.org/~marius/pages/?page=trickle

Trickle is a simple bandwidth limiter

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.