Checkout the Quick Start Guide for a general overview of the technology.
Using Curl as an example you can get basic opinion detection using the following
command. This assumes you have your text in a text file called
some_file.txt.
cat some_file.txt | \ curl -F 'input=<-' "http://opener.olery.com/language-identifier" | \ curl -F 'input=<-' "http://opener.olery.com/tokenizer" | \ curl -F 'input=<-' "http://opener.olery.com/pos-tagger" | \ curl -F 'input=<-' "http://opener.olery.com/polarity-tagger" | \ curl -F 'input=<-' "http://opener.olery.com/opinion-detector-basic"
By using the full pipeline the opinion detection should become better. In this case you will need the NER and NED and their support endpoints. Like this:
cat some_file.txt | \ curl -F 'input=<-' "http://opener.olery.com/language-identifier" | \ curl -F 'input=<-' "http://opener.olery.com/tokenizer" | \ curl -F 'input=<-' "http://opener.olery.com/pos-tagger" | \ curl -F 'input=<-' "http://opener.olery.com/constituent-parser" | \ curl -F 'input=<-' "http://opener.olery.com/ner" | \ curl -F 'input=<-' "http://opener.olery.com/ned" | \ curl -F 'input=<-' "http://opener.olery.com/property-tagger" | \ curl -F 'input=<-' "http://opener.olery.com/polarity-tagger" | \ curl -F 'input=<-' "http://opener.olery.com/opinion-detector"
 This project has received funding from the European Union’s Seventh
    Framework Programme for research, technological development and
    demonstration under grant agreement no 261712.
 This project has received funding from the European Union’s Seventh
    Framework Programme for research, technological development and
    demonstration under grant agreement no 261712.