Take a look at http://pig.apache.org/docs/r0.10.0/cont.html#Parameter-Sub- Specifying Parameters Using the Declare Statement.
You can do this in your case %declare page_input_path `echo $input_path | sed 's/output/output\/page/g'` Or you can use embedded python ( http://pig.apache.org/docs/r0.10.0/cont.html#embed-python) to bind the input and output after manipulating the parameters using python. Regards, Rohini On Tue, Dec 25, 2012 at 7:35 PM, Mohit Anchlia <mohitanch...@gmail.com>wrote: > I am trying to replace string in the input parameter. Is something like > this possible? I am passing comma separated list of dirs and I have several > sub dirs that I need to read from individually in those dirs so that after > loading I can stored them as merged ouput > > > pig -p > > input_path="/user/apuser/web-analytics/flume-output//2012/12/21/13/output,/user/apuser/web-analytics/flume-output//2012/12/21/14/output" > new_m.pig > > %declare page_input_path REPLACE($input_path,"output","output/page") > > %declare network_input_path REPLACE($input_path,"output","output/network") >