121 lines
3.6 KiB
Groff
121 lines
3.6 KiB
Groff
.TH POSTALIAS 1
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.ad
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.fi
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.SH NAME
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postalias
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\-
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Postfix alias database maintenance
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.SH SYNOPSIS
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.na
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.nf
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.fi
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\fBpostalias\fR [\fB-Ninvw\fR] [\fB-c \fIconfig_dir\fR]
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[\fB-q \fIkey\fR] [\fIfile_type\fR:]\fIfile_name\fR ...
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.SH DESCRIPTION
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.ad
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.fi
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The \fBpostalias\fR command creates or queries one or more Postfix
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alias databases, or updates an existing one. The input and output
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file formats are expected to be compatible with Sendmail version 8,
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and are expected to be suitable for the use as NIS alias maps.
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While a database update is in progress, signal delivery is
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postponed, and an exclusive, advisory, lock is placed on the
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entire database, in order to avoid surprises in spectator
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programs.
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Options:
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.IP \fB-N\fR
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Include the terminating null character that terminates lookup keys
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and values. By default, Postfix does whatever is the default for
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the host operating system.
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.IP "\fB-c \fIconfig_dir\fR"
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Read the \fBmain.cf\fR configuration file in the named directory.
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.IP \fB-i\fR
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Incremental mode. Read entries from standard input and do not
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truncate an existing database. By default, \fBpostalias\fR creates
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a new database from the entries in \fBfile_name\fR.
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.IP \fB-n\fR
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Don't include the terminating null character that terminates lookup
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keys and values. By default, Postfix does whatever is the default for
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the host operating system.
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.IP "\fB-q \fIkey\fR"
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Search the specified maps for \fIkey\fR and print the first value
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found on the standard output stream. The exit status is non-zero
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if the requested information was not found.
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.IP \fB-v\fR
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Enable verbose logging for debugging purposes. Multiple \fB-v\fR
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options make the software increasingly verbose.
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.IP \fB-w\fR
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Do not warn about duplicate entries; silently ignore them.
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.PP
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Arguments:
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.IP \fIfile_type\fR
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The type of database to be produced.
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.RS
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.IP \fBbtree\fR
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The output is a btree file, named \fIfile_name\fB.db\fR.
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This is available only on systems with support for \fBdb\fR databases.
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.IP \fBdbm\fR
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The output consists of two files, named \fIfile_name\fB.pag\fR and
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\fIfile_name\fB.dir\fR.
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This is available only on systems with support for \fBdbm\fR databases.
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.IP \fBhash\fR
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The output is a hashed file, named \fIfile_name\fB.db\fR.
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This is available only on systems with support for \fBdb\fR databases.
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.PP
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When no \fIfile_type\fR is specified, the software uses the database
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type specified via the \fBdatabase_type\fR configuration parameter.
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The default value for this parameter depends on the host environment.
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.RE
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.IP \fIfile_name\fR
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The name of the alias database source file when rebuilding a database.
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.SH DIAGNOSTICS
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.ad
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.fi
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Problems are logged to the standard error stream. No output means
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no problems were detected. Duplicate entries are skipped and are
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flagged with a warning.
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.SH ENVIRONMENT
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.na
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.nf
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.ad
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.fi
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.IP \fBMAIL_CONFIG\fR
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Directory with Postfix configuration files.
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.IP \fBMAIL_VERBOSE\fR
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Enable verbose logging for debugging purposes.
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.SH CONFIGURATION PARAMETERS
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.na
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.nf
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.ad
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.fi
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The following \fBmain.cf\fR parameters are especially relevant to
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this program. See the Postfix \fBmain.cf\fR file for syntax details
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and for default values.
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.IP \fBdatabase_type\fR
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Default alias database type. On many UNIX systems, the default type
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is either \fBdbm\fR or \fBhash\fR.
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.SH STANDARDS
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.na
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.nf
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RFC 822 (ARPA Internet Text Messages)
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.SH SEE ALSO
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.na
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.nf
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aliases(5) format of alias database input file.
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sendmail(1) mail posting and compatibility interface.
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.SH LICENSE
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.na
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.nf
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.ad
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.fi
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The Secure Mailer license must be distributed with this software.
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.SH AUTHOR(S)
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.na
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.nf
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Wietse Venema
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IBM T.J. Watson Research
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P.O. Box 704
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Yorktown Heights, NY 10598, USA
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