gerjantd

http://stackoverflow.com/questions/1392768/rename-part-of-filename

rename 's/201402/201404/' 201402*

gerjantd

PORT SCANNING
     It may be useful to know which ports are open and running services on a target machine.  The -z flag can be used to tell nc to report open ports, rather than initiate a connection. Usually it's useful to turn on verbose output to stderr by use this
     option in conjunction with -v option.

     For example:

           $ nc -zv host.example.com 20-30
           Connection to host.example.com 22 port [tcp/ssh] succeeded!
           Connection to host.example.com 25 port [tcp/smtp] succeeded!

gerjantd

TALKING TO SERVERS
     It is sometimes useful to talk to servers “by hand” rather than through a user interface.  It can aid in troubleshooting, when it might be necessary to verify what data a server is sending in response to commands issued by the client.  For example, to
     retrieve the home page of a web site:

           $ printf "GET / HTTP/1.0\r\n\r\n" | nc host.example.com 80

     Note that this also displays the headers sent by the web server.  They can be filtered, using a tool such as sed(1), if necessary.

     More complicated examples can be built up when the user knows the format of requests required by the server.  As another example, an email may be submitted to an SMTP server using:

gerjantd

DATA TRANSFER
     The example in the previous section can be expanded to build a basic data transfer model.  Any information input into one end of the connection will be output to the other end, and input and output can be easily captured in order to emulate file trans‐
     fer.

     Start by using nc to listen on a specific port, with output captured into a file:

           $ nc -l 1234 > filename.out

     Using a second machine, connect to the listening nc process, feeding it the file which is to be transferred:

gerjantd

CLIENT/SERVER MODEL
     It is quite simple to build a very basic client/server model using nc.  On one console, start nc listening on a specific port for a connection.  For example:

           $ nc -l 1234

     nc is now listening on port 1234 for a connection.  On a second console (or a second machine), connect to the machine and port being listened on:

           $ nc 127.0.0.1 1234

     There should now be a connection between the ports.  Anything typed at the second console will be concatenated to the first, and vice-versa.  After the connection has been set up, nc does not really care which side is being used as a ‘server’ and which

gerjantd

Ctrl+Alt+F1, log on

  unity &> /dev/null & disown

or (unity is a compiz plugin)

  compiz --replace &> /dev/null & disown

http://askubuntu.com/questions/38579/how-do-i-restart-an-unity-session-from-the-terminal

gerjantd

# http://stackoverflow.com/questions/2709458/bash-script-to-replace-spaces-in-file-names
find ./tmp/ -depth -name "* *" -execdir rename 's/ /_/g' "{}" \;

gerjantd

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gerjantd

ssh user@host tail -F /usr/share/tomcat/logs/catalina.out >> /tmp/host-catalina.out

vi ~/.swatchrc:
watchfor        /"from"/
        pipe 'cut -f5- -d" "|python -mjson.tool'

swatch -c ~/.swatchrc -t /tmp/host-catalina.out

gerjantd

@Grab(group='net.sourceforge.nekohtml', module='nekohtml', version='1.9.18')
import org.cyberneko.html.parsers.SAXParser

def download(address)
{
	def file = new FileOutputStream(address.tokenize("/")[-1])
	def out = new BufferedOutputStream(file)
	out << new URL(address).openStream()
	out.close()
}