1DBFORMMAIL(1) User Contributed Perl Documentation DBFORMMAIL(1)
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6 dbformmail - write a shell script that will send e-mail to many people
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9 dbformmail [-m MECHANISM] format_file.txt
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12 Read a ``form mail'' message from the file FORMAT_FILE.TXT, filling in
13 underscore-preceded column-names with data. Output a shell script
14 which will send each message through some mail transport MECHANISM.
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16 Do not use this program for evil or I will have to come over and have
17 words with you.
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19 Note that this program does NOT actually SEND the mail. It writes a
20 shell script that will send the mail for you. I recommend you save it
21 to a file, check it (one last time!), then run it with sh.
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23 Unlike most Fsdb programs, this program does not output a FSDB file.
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26 -m MECHANISM
27 Select the mail-sending mechanism: Mail, sendmail, or mh. Defaults
28 to "Mail".
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30 Mail uses a Berkeley-style /usr/bin/Mail. Sendmail invokes
31 /usr/bin/sendmail. Mh writes messages into the current directory,
32 treating it as an mh-style mailbox (one message per file, with
33 filesnames as sequential integrates).
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35 This module also supports the standard fsdb options:
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37 -d Enable debugging output.
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39 -i or --input InputSource
40 Read from InputSource, typically a file name, or "-" for standard
41 input, or (if in Perl) a IO::Handle, Fsdb::IO or Fsdb::BoundedQueue
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44 -o or --output OutputDestination
45 Write to OutputDestination, typically a file name, or "-" for
46 standard output, or (if in Perl) a IO::Handle, Fsdb::IO or
47 Fsdb::BoundedQueue objects.
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49 --autorun or --noautorun
50 By default, programs process automatically, but Fsdb::Filter
51 objects in Perl do not run until you invoke the run() method. The
52 "--(no)autorun" option controls that behavior within Perl.
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54 --help
55 Show help.
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57 --man
58 Show full manual.
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61 Input:
62 #fsdb account passwd uid gid fullname homedir shell
63 johnh * 2274 134 John_Heidemann /home/johnh /bin/bash
64 greg * 2275 134 Greg_Johnson /home/greg /bin/bash
65 root * 0 0 Root /root /bin/bash
66 # this is a simple database
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68 Sample form (in the file form.txt):
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70 To: _account
71 From: the sysadmin <root>
72 Subject: time to change your password
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74 Please change your password regularly.
75 Doesn't this message make you feel safer?
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77 Command:
78 cat DATA/passwd.fsdb | dbformmail form.txt >outgoing.sh
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80 Output (in outgoing.sh):
81 #!/bin/sh
82 sendmail 'johnh' <<'END'
83 To: johnh
84 From: the sysadmin <root>
85 Subject: time to change your password
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87 Please change your password regularly.
88 Doesn't this message make you feel safer?
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90 END
91 sendmail 'greg' <<'END'
92 (etc.)
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94 And to send the mail, run
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96 sh outgoing.sh
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99 Fsdb.
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102 Copyright (C) 1991-2018 by John Heidemann <johnh@isi.edu>
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104 This program is distributed under terms of the GNU general public
105 license, version 2. See the file COPYING with the distribution for
106 details.
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110perl v5.34.0 2021-07-22 DBFORMMAIL(1)