Maybe stupid question, but I can't find it anywhere. I have a variable in procmail (eg $SUBJECT) and I need to push it to some shell command. Something like:
# in /etc/procmailrc SUBJECT="^(XX-)?Subject: ?" # in user defined procmailrc file FORMAIL=/usr/bin/formail :0 fhw | ${FORMAIL} -A 'X-Subject-Is: $SUBJECT'
But it save me a header X-Subject-Is: $SUBJECT
, not with Subject line.. Is there any way, how to push variable to shell command?