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Hi Michael, > EXP ^(........\...)d\.Z$ > PIPE > "uncompress | crx2rnx - > /tmp/file.1" The reason this won't work is that pqact doesn't invoke a Unix shell to handle your command, it just invokes the command "uncompress" and then hands it the string arguments "|", "crx2rnx", "-", ">", and "/tmp/file.1". A shell is required to do I/O redirection or pipes or filename expansions, so if you need these, you should put the command inside a shell script and invoke that from pqact instead. You can provide arguments to the shell script. --Russ _____________________________________________________________________ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu/staff/russ