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Интерактивная система просмотра системных руководств (man-ов)

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postlock (1)
  • postlock (1) ( Русские man: Команды и прикладные программы пользовательского уровня )
  • >> postlock (1) ( Linux man: Команды и прикладные программы пользовательского уровня )
  •  

    NAME

    postlock
    -
    lock mail folder and execute command
     
    

    SYNOPSIS

    
    
    postlock [-c config_dir] [-l lock_style]
    
            [-v
    file command...  

    DESCRIPTION

    The postlock(1) command locks file for exclusive access, and executes command. The locking method is compatible with the Postfix UNIX-style local delivery agent.

    Options:

    -c config_dir
    Read the main.cf configuration file in the named directory instead of the default configuration directory.
    -l lock_style
    Override the locking method specified via the mailbox_delivery_lock configuration parameter (see below).
    -v
    Enable verbose logging for debugging purposes. Multiple -v options make the software increasingly verbose.

    Arguments:

    file
    A mailbox file. The user should have read/write permission.
    command...
    The command to execute while file is locked for exclusive access. The command is executed directly, i.e. without interpretation by a shell command interpreter.
     

    DIAGNOSTICS

    The result status is 75 (EX_TEMPFAIL) when postlock(1) could not perform the requested operation. Otherwise, the exit status is the exit status from the command.  

    BUGS

    With remote file systems, the ability to acquire a lock does not necessarily eliminate access conflicts. Avoid file access by processes running on different machines.  

    ENVIRONMENT

    
    
    
    MAIL_CONFIG
    Directory with Postfix configuration files.
    MAIL_VERBOSE
    Enable verbose logging for debugging purposes.
     

    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.
     
    

    LOCKING CONTROLS

    
    
    
    deliver_lock_attempts (20)
    The maximal number of attempts to acquire an exclusive lock on a mailbox file or bounce(8) logfile.
    deliver_lock_delay (1s)
    The time between attempts to acquire an exclusive lock on a mailbox file or bounce(8) logfile.
    stale_lock_time (500s)
    The time after which a stale exclusive mailbox lockfile is removed.
    mailbox_delivery_lock (see 'postconf -d' output)
    How to lock a UNIX-style local(8) mailbox before attempting delivery.
     

    RESOURCE AND RATE CONTROLS

    
    
    
    fork_attempts (5)
    The maximal number of attempts to fork() a child process.
    fork_delay (1s)
    The delay between attempts to fork() a child process.
     

    MISCELLANEOUS CONTROLS

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

    SEE ALSO

    postconf(5), configuration parameters
    
     

    LICENSE

    
    
    The Secure Mailer license must be distributed with this software.
     
    

    AUTHOR(S)

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

     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    DIAGNOSTICS
    BUGS
    ENVIRONMENT
    CONFIGURATION PARAMETERS
    LOCKING CONTROLS
    RESOURCE AND RATE CONTROLS
    MISCELLANEOUS CONTROLS
    SEE ALSO
    LICENSE
    AUTHOR(S)


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