How to execute linux sh command from inside CF

I am using CFMX 7,0,0,91690 Enterprise on Redhat Enterprise Linux 4.9 with Apache webserver 2.0.52. I have a coldfusion template that queries from a Postgresql 8.0 database, copies the data from the queries into a set of files in one folder on the linux server, and then has a CFEXECUTE tag at the very end that calls a bash shell script on the same server. The shell script takes the files from the one folder, merges some of their content together, moves them to another folder, adds header and footer, and sets ownership and permissions. These 2 scripts have been in place and working perfectly for several years now. No changes were made to content, permissions, or ownershop of scripts. Suddenly last Friday the coldfusion script seems to have lost its ability to execute the shell script properly. It does execute it and the shell script attempts to do some of the steps, but the resulting files are missing the content and have the linux environmental variables and their values displayed instead. Clearly its getting an error but that is not being reported back to me. After the CF script ends, if I manually execute the shell script from the linux command line, it works perfectly. I tried giving it more permissions but that did not help. Redhat support suggests I run the script with "sh -x" to get more detailed output for debugging, but I would need to do that from inside the CF script since that is where the problem is. Is it possible to execute a shell script from inside a CF script using a linux "sh" command in some way (instead of the cfexecute, just so I can see debugging info)? Thanks in advance for any suggestions. Julie

Thanks for the suggestion, tried that too:
<cfexecute name="/bin/sh" arguments="-x /bin/siscopy" outputfile="/home/coldfusion/sh_output.txt" timeout="600" />
still didn't work. Script ends with this coldfusion error: Timeout period expired without completion of /bin/sh
It does not complete the task of making the files, and the sh_output.txt file which is supposed to capture the -x output, is empty.
Thanks,
Julie

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