bcron-update - Update system crontabs.
[ path ...
polls the named files or directories periodically to see if
there are any new, changed, or removed files. When it detects changes, it
mirrors those changes into the crontab spool directory. bcron-update
runs as root in order to be able to read system files that would potentially
be unreadable otherwise.
On Debian, if path
is a directory, bcron-update
skips files in
this directory with names that do not solely consist of lower- and uppercase
letters ('a'-'z', 'A'-'Z'), digits ('0'-'9'), underscores ('_'), and hyphens
To mirror modern vixie-cron's behavior, use:
bcron-update /etc/crontab /etc/cron.d
- The spool directory for bcron. Defaults to
- After writing files and before moving them into their final
location, bcron-update changes the ownership of the file to this
user so that bcron-sched can read them.
outputs three different kinds of messages about actions it
- Rescanning /etc/cron.d
- The named directory has been modified, and will be scanned
to determine what files have been added or deleted.
- The named file no longer exists and will be removed from
- The named file was either created or modified since the
last scan, and will be copied into the spool.
Bruce Guenter <email@example.com>