POSTLOG(1) General Commands Manual POSTLOG(1)
NAME
postlog - Postfix-compatible logging utility
SYNOPSIS
postlog [-iv] [-c config_dir] [-p priority] [-t tag] [text...]
DESCRIPTION
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 main.cf configuration file in the named directory instead of the default configuration direc‐
tory.
-i Include the process ID in the logging tag.
-p priority
Specifies the logging severity: info (default), warn, error, fatal, or panic.
-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 ver‐
bose.
ENVIRONMENT
MAIL_CONFIG
Directory with the main.cf file.
CONFIGURATION PARAMETERS
The following main.cf parameters are especially relevant to this program.
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 main.cf and master.cf 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, "postfix/smtpd".
SEE ALSO
postconf(5), configuration parameters
syslogd(8), syslog daemon
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