How to call a SOAP web service using wget linux tool

First you have to store an xml file containing the input data, to be posted to web service as the input.
Say for example that the file is named input.xml

Then call the wget command as follows:

wget --post-file=input.xml --header="Content-Type: text/xml;charset=UTF-8" \

--header="SOAPAction: \"THE_SOAPACTION_AS_IS_IN_WSDL"" \

http://URL_TO_THE_WEB_SERVICE -O response.xml

If everything is ok, response.xml will contain the web service result

tip: for creating a correct input.xml, use SoapUI and after call the web service see the raw tab to get the raw xml which is the input of the web service.