In order to download the C&C Tools you have to register at
http://svn.ask.it.usyd.edu.au/trac/candc/wiki/Register .

With the password that will be mailed to you, you are able to download the
pre-compiled binaries for Linux at
http://svn.ask.it.usyd.edu.au/trac/candc/wiki/Download .
Also download the models on the same page.

Unpack the binaries first, there will be a directory 'candc-1.00'.
Unpack the models in this directory.

After changing to 'candc-1.00' in the terminal type
bin/pos --model models/pos
to start the tagger.
Typing a sentence (or phrase) and hitting return will return the tagged
sentence.

Input and output can be specified with the --input and --output options.
In the input file the parser expects each sentence on one line.