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Full Discussion: Invoke a shell script in case mail with a specific subject is received
Top Forums Shell Programming and Scripting Invoke a shell script in case mail with a specific subject is received Post 303000387 by rbatte1 on Tuesday 11th of July 2017 11:16:11 AM
Old 07-11-2017
Perhaps something like:-
Code:
# echo "user.email:   | /usr/libexec/mymailcheck.ksh" >> /etc/aliases
stopsrc -s postfix            # ... or whatever mail server you are using
startsrc -s postfix           # Ditto

Then a script like this as /usr/libexec/mymailcheck.ksh
Code:
#!/bin/ksh
while read line        # Read each line of the email input (including all headers and other stuff you normally never see)
do
   # Work out if we have a subject line and act on the subject
   linetag="${line%% *}"       # Get first word
   if [ "$linetag" = "Subject:" ]
   then
      subject="${line#Subject: }"
      logger "I have a subject \"$subject\""
      # Whatever else you want to do here too.......
   fi
done

Obviously do this on a test server and take a copy of /etc/aliases first.


Does that help at all?
Robin
 

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LEARN ABOUT DEBIAN

mhmail

MHMAIL(1)							     [nmh-1.5]								 MHMAIL(1)

NAME

       mhmail - send or read mail

SYNOPSIS

       mhmail [addrs ...]  [-body text] [-cc addrs ...]  [-from addr] [-subject subject] [-version] [-help]

DESCRIPTION

       mhmail  is intended as a replacement for the standard Berkeley mail program (mail or mailx), which is compatible with nmh.  This program is
       intended for the use of programs such as cron, which expect to send mail automatically to various users.  It is also used  by  various  nmh
       commands  to  mail  various  error  notifications.  Although mhmail can be used interactively, it is recommended that comp and send be used
       instead to send messages.

       When invoked without arguments, it simply invokes inc to incorporate new messages from the user's maildrop.  When  one  or  more  users	is
       specified, a message is read from the standard input and spooled to a temporary file.  mhmail then invokes post with the name of the tempo-
       rary file as its argument to deliver the message to the specified user.

       The -subject subject switch can be used to specify the "Subject:" field of the message.

       By default, mhmail will read the message to be sent from the standard input.  You can specify the text of the message at the  command  line
       with  the  -body text switch.  If the standard input has zero length, mhmail will not send the message.	You can use the switch -body "" to
       force an empty message.

       Normally, addresses appearing as arguments are put in the "To:" field.  If the -cc switch is used, all addresses following it are placed in
       the "cc:" field.

       By using -from addr, you can specify the "From:" header of the draft.  Naturally, post will fill-in the "Sender:" header correctly.

FILES

       /usr/bin/mh/inc		  Program to incorporate maildrop into folder
       /usr/lib/mh/post 	  Program to deliver a message
       /tmp/mhmail*		  Temporary copy of message

SEE ALSO

       inc(1), post(8)

DEFAULTS

       None

CONTEXT

       If inc is invoked, then inc's context changes occur.

MH.6.8								   11 June 2012 							 MHMAIL(1)
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