On Thu, 31 Oct 2019, at 21:57, Zhiliang Hu wrote:
:0 hw
| (formail -I "X-Loop: my-email@my-domain" \
-I "Subject: Problems with ....."; \
cat - notify.moderators.txt) \
Using 'formail' and 'cat' together can be found from man pages on
"procmailex". As they are put in parenthsis, I think when these
shell commands are executed in sequence the outcomes get piped at
once to the next action.
Correct, but procmailex(1) shows only `formail ; cat FILE` not
`formail ; cat - FILE`. Here the formail reads from stdin (the headers
from procmail), then cat reads again until whatever. In short, remove
the "-".
--
-- Andreas
:-)
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