of course change community name to suit. Then blast this in a for i in $(buncha hosts); do dellomsaver $i; done loop

client$ while true; do read -n30 ui; echo $ui |openssl enc -aes-256-cbc -a -k PaSSw ; done | nc localhost 8877 | while read so; do decoded_so=`echo "$so"| openssl enc -d -a -aes-256-cbc -k PaSSw`; echo -e "Incoming: $decoded_so"; done

This will establish a simple encrypted chat with AES-256-CBC using netcat and openssl only.

More info here http://www.nixaid.com/linux/network/encrypted-chat-with-netcat

Use find's internal stat to get the file size then let the shell add up the numbers.

Using find's internal stat to get the file size is about 50 times faster than using -exec stat.

Output should be two JPG files named like "output-1.jpg" and "output-2.jpg". The convert command is part of ImageMagick so you'll need that and dependent packages installed to use it.

Find files and calculate size with stat of result in shell

This command removes all ruby gems except the default ones that can not be removed. It is based on http://geekystuff.net/2009/01/14/remove-all-ruby-gems/

don't bother spawning a bc process or counting the number of options, just pick a random one.

'sort -R' sorts randomly, so pick the top one.

The -W switch of netstat makes it print complete URL of the connections, which otherwise by default

is truncated to fit its default column size.

Now to compensate for irregular column sizes, pipe the output to column (-t switch of column prints in tabular form). The only downside to this part is that the very first row, the header, goes pear shape.

The rsstail is the python version (python-rsstail). The final command pipe it on every new line to gammu and a connected phone

Opens a window with $1 attached and ready to send.

To disable the requirement for the sender to be authenticated:

Set-DistributionGroup -Identity Name-of-Dist-Group -RequireSenderAuthenticationEnabled $false

To disable the group:

disable-DistributionGroup Name-of-Dist-Group

This command shows a high level overview of system memory and usage refreshed in seconds. Change -n 10 to you desired refresh interval.

This command will show the sum total of memory used in gigabytes by a program that spawns multiple instances of itself. Replace chrome with whatever program's memory usage you are investigating. This command is rather useless on software that only spawns a single instance of itself.