postlog - Postfix-compatible logging utility


   postlog [-iv] [-c config_dir] [-p priority] [-t tag] [text...]


   The   postlog(1)   command   implements  a  Postfix-compatible  logging
   interface for use in, for example, shell scripts.

   By default, postlog(1) logs the text given on the command line  as  one
   record.  If  no text is specified on the command line, postlog(1) reads
   from standard input and logs each input line as one record.

   Logging is sent to  syslogd(8);  when  the  standard  error  stream  is
   connected to a terminal, logging is sent there as well.

   The following options are implemented:

   -c config_dir
          Read  the  configuration  file  in  the named directory
          instead of the default configuration directory.

   -i     Include the process ID in the logging tag.

   -p priority (default: info)
          Specifies the logging severity: info,  warn,  error,  fatal,  or
          panic.  With Postfix 3.1 and later, the program will pause for 1
          second after reporting a fatal or  panic  condition,  just  like
          other Postfix programs.

   -t tag Specifies  the  logging  tag, that is, the identifying name that
          appears at the beginning of each logging record. A  default  tag
          is used when none is specified.

   -v     Enable  verbose  logging  for  debugging  purposes.  Multiple -v
          options make the software increasingly verbose.


          Directory with the file.


   The following  parameters  are  especially  relevant  to  this

   The  text  below provides only a parameter summary. See postconf(5) for
   more details including examples.

   config_directory (see 'postconf -d' output)
          The default  location  of  the  Postfix  and
          configuration files.

   syslog_facility (mail)
          The syslog facility of Postfix logging.

   syslog_name (see 'postconf -d' output)
          The  mail  system  name that is prepended to the process name in
          syslog  records,  so  that   "smtpd"   becomes,   for   example,


   postconf(5), configuration parameters
   syslogd(8), syslog daemon


   The Secure Mailer license must be distributed with this software.


   Wietse Venema
   IBM T.J. Watson Research
   P.O. Box 704
   Yorktown Heights, NY 10598, USA

   Wietse Venema
   Google, Inc.
   111 8th Avenue
   New York, NY 10011, USA



Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.

Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.

Free Software

Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.

Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.

Free Books

The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.

Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.


Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.

Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.