Alternatively you can redirect your STDOUT and/or STDERR into a LOG txt file as additional output to the tool. I do many times the same since it allows the realtime tracking in the log file of the process where it is and when it's expected to be finished. Indeed a wrapper can be used but if you just have a plain cmdline with options in your tool xml you can use 1>dev/null and 2>dev/null (or 2>&- and 1>&- in short). For the XML to keep it valid you need to encode the > and & into: 2>&- Or port both into a logfile which you specify as output. 2>$logfile (2>$logfile) Alex Van: galaxy-dev-bounces@lists.bx.psu.edu [mailto:galaxy-dev-bounces@lists.bx.psu.edu] Namens shashi shekhar Verzonden: donderdag 26 mei 2011 14:36 Aan: galaxy-dev@lists.bx.psu.edu Onderwerp: [galaxy-dev] stdout and stderr Hi all, I am using one tool which gives stdout and stderr . it is showing red color (job failed) in browser.How can i resolve such type of problem. Regards shashi shekhar