Dear all, I am looking into options for renaming output files automatically in workflows and I found this thread : http://dev.list.galaxyproject.org/Renaming-in-Workflows-td4656426.html#a4656... I managed to use the following in test workflow: - ${} to create input variable to the workflow - #{} to reuse the tool input(s) In the post indicated earlier, I read that one can even manipulate input string with basename, upper and lower e.g. #{ input | basename} All this is really awesome and my questions are : - are there other ways to fetch existing e.g. env variables than ${} or #{} - what other variables can be fetched e.g. maybe this 'on_string' ? - are there string functions other than basename, upper and lower that can be used ? Is there a list? Thx a lot Charles