dbformmail - Man Page
write a shell script that will send e-mail to many people
dbformmail [-m MECHANISM] format_file.txt
Read a “form mail” message from the file FORMAT_FILE.TXT, filling in underscore-preceded column-names with data. Output a shell script which will send each message through some mail transport MECHANISM.
Do not use this program for evil or I will have to come over and have words with you.
Note that this program does NOT actually SEND the mail. It writes a shell script that will send the mail for you. I recommend you save it to a file, check it (one last time!), then run it with sh.
Unlike most Fsdb programs, this program does not output a FSDB file.
- -m MECHANISM
Select the mail-sending mechanism: Mail, sendmail, mh. Defaults to "Mail".
Mail uses a Berkeley-style /usr/bin/Mail. Sendmail invokes /usr/bin/sendmail. Mh writes messages into the current directory, treating it as an mh-style mailbox (one message per file, with filesnames as sequential integrates).
This module also supports the standard fsdb options:
Enable debugging output.
- -i or --input InputSource
Read from InputSource, typically a file name, or
-for standard input, or (if in Perl) a IO::Handle, Fsdb::IO or Fsdb::BoundedQueue objects.
- -o or --output OutputDestination
Write to OutputDestination, typically a file name, or
-for standard output, or (if in Perl) a IO::Handle, Fsdb::IO or Fsdb::BoundedQueue objects.
- --autorun or --noautorun
By default, programs process automatically, but Fsdb::Filter objects in Perl do not run until you invoke the run() method. The
--(no)autorunoption controls that behavior within Perl.
Show full manual.
#fsdb account passwd uid gid fullname homedir shell johnh * 2274 134 John_Heidemann /home/johnh /bin/bash greg * 2275 134 Greg_Johnson /home/greg /bin/bash root * 0 0 Root /root /bin/bash # this is a simple database
Sample form (in the file form.txt):
To: _account From: the sysadmin <root> Subject: time to change your password Please change your password regularly. Doesn't this message make you feel safer?
cat DATA/passwd.fsdb | dbformmail form.txt >outgoing.sh
Output (in outgoing.sh)
#!/bin/sh sendmail 'johnh' <<'END' To: johnh From: the sysadmin <root> Subject: time to change your password Please change your password regularly. Doesn't this message make you feel safer? END sendmail 'greg' <<'END' (etc.)
And to send the mail, run
AUTHOR and COPYRIGHT
Copyright (C) 1991-2018 by John Heidemann <firstname.lastname@example.org>
This program is distributed under terms of the GNU general public license, version 2. See the file COPYING with the distribution for details.