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       aelock - take a lock while a command runs


       aelock [ option...  ] command
       aelock -Help
       aelock -VERSion


       The aelock" command is used to take a project lock while a command
       runs.  This may be used to ensure that the project state is stable
       while it is being backed up.

       The named command is looked for as an attribute called aelock:command
       within the project_specific field of the project configuration file.

       The command is then passed through the usual aesub(5) substitutions
       before being executed.  The command is executed as the project owner.
       If the command returns with a non-zero exit status, the aelock(1)
       command will return an exit status of one.

   Security Issues
       This command is a potential security problem.  Because it takes a read-
       only lock of all active branches and changes in a project, from the
       trunk down, misuse of this command is a potential denial of service
       attack.  Thus, this command is limited to project administrators only.

       This command could have been designed to take an arbitrary command to
       execute, like sudo(1), but this would have granted users, even project
       administrators, more privileges than usual.  For this reason, the
       command is held in a source controlled, fully reviewed project
       configuration file, and is simply indicated by name.

       The command is run as the project owner, not the executing user.  It
       has full write access (that’s the way Unix permissions work).  Like
       aeb(1), this means it can wreak havoc on the project baseline and meta-
       data.  Use with extreme care.


       The following options are understood:

       -Project name
               This option may be used to select the project of interest.
               When no -Project option is specified, the AEGIS_PROJECT
               environment variable is consulted.  If that does not exist, the
               user’s $HOME/.aegisrc file is examined for a default project
               field (see aeuconf(5) for more information).  If that does not
               exist, when the user is only working on changes within a single
               project, the project name defaults to that project.  Otherwise,
               it is an error.

               This option may be used to obtain more information about how to
               use the aelock program.

       See also aegis(1) for options common to all aegis commands.

       All options may be abbreviated; the abbreviation is documented as the
       upper case letters, all lower case letters and underscores (_) are
       optional.  You must use consecutive sequences of optional letters.

       All options are case insensitive, you may type them in upper case or
       lower case or a combination of both, case is not important.

       For example: the arguments "-project, "-PROJ" and "-p" are all
       interpreted to mean the -Project option.  The argument "-prj" will not
       be understood, because consecutive optional characters were not

       Options and other command line arguments may be mixed arbitrarily on
       the command line, after the function selectors.

       The GNU long option names are understood.  Since all option names for
       aelock are long, this means ignoring the extra leading ’-’.  The
       "--option=value" convention is also understood.


       The aelock command will exit with a status of 1 on any error.  The
       aelock command will only exit with a status of 0 if there are no


       See aegis(1) for a list of environment variables which may affect this
       command.  See aepconf(5) for the project configuration file’s project_
       specific field for how to set environment variables for all commands
       executed by Aegis.


       aelock version 4.24.3.D001
       Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
       2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Peter

       The aelock program comes with ABSOLUTELY NO WARRANTY; for details use
       the ’aelock -VERSion License’ command.  This is free software and you
       are welcome to redistribute it under certain conditions; for details
       use the ’aelock -VERSion License’ command.


       Peter Miller   E-Mail:
       /\/\*             WWW: