Although I used procmail for so long I never figure out what kind of
"script" rules it follows. For example in one of my rc script I try to
calculate a list file ("dist"):
DISTCOUNT=`grep -cv '^(' dist` -1
the calculation part fails, end up in the log:
procmail: Skipped "-1"
How can I get over this without getting it to external script for a simple
calculation like this?
Zhiliang
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