TCL: exec egrep “child process exited abnormally”

Question

I have a problem with egrep command. When I execute my command in tcsh it is working perfect but when I execute it from tcl script or in tclsh, I got:

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Answer 1

I had the same error when running the following command:

exec top -b -n 1 -c | egrep lnx64.o/vsimk | wc -l

TCL wasn't happy about forward slash "/" in the grep expression. It got fixed by using "-ignorestderr" switch:

exec -ignorestderr -- top -b -n 1 -c | egrep lnx64.o/vsimk | wc -l.