xenial (7) file-event.7.gz

NAME

       file - event signalling that a file has changed

SYNOPSIS

       file FILE=PATH EVENT=TYPE [MATCH=PATH]

DESCRIPTION

       The file event is generated by the upstart-file-bridge(8) daemon when a file whose details match the file
       event condition and environment specified in a job's start on or stop on stanza is modified.

       The FILE and EVENT environment variables will be set to the same values as specified  by  the  job.  Note
       that if the job did not specify EVENT this will still be set to one of create, modify or delete depending
       on what type of file event caused the event to be emitted.

       If the job specified a glob pattern in the file part of the FILE environment  variable,  the  event  will
       contain  the  MATCH  environment variable which will be set to the full path of the file that matched the
       pattern in FILE.

NOTES

       •   When specifying a path that contains spaces, ensure that the path is quoted.

       •   FILE values specified by jobs are not canonicalised; this cannot be done reliably  as  they  may  not
           exist so cannot be fully resolved.

       •   If you wish to match on MATCH, ensure that FILE does not contain multiple consecutive runs of slashes
           since otherwise your job will find it difficult to perform such a match.

EXAMPLES

       start on file FILE=/run/app.pid EVENT=create
           Event emitted when file is created.

       start on file FILE=/run/app.pid
           Event emitted when file is created, modified or deleted.

       start on file FILE=/var/log/
           Event emitted when files within a directory are created, modified or deleted.

       start on file FILE=/var/crash/*.crash EVENT=create
           Event emitted when files that match a glob pattern are created in the indicated directory.

       start on file FILE="/this/path/contains whitespace.txt"
           Specify a file that contains a space character.

AUTHOR

       Written by James Hunt <james.hunt@canonical.com>

BUGS

       Report bugs at <https://launchpad.net/upstart/+bugs>

COPYRIGHT

       Copyright © 2013 Canonical Ltd.

       This is free software; see the source for copying  conditions.   There  is  NO  warranty;  not  even  for
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

SEE ALSO

       init(5) init(8) upstart-file-bridge(8)