NAME

ckbupscd - check file system backup schedule

SYNOPSIS

ckbupscd [ -m ]

DESCRIPTION

ckbupscd consults the file /etc/bupsched and prints the file
system  lists  from  lines with date and time specifications
matching the current time.  If the -m flag  is  present,  an
introductory  message  in  the  output is suppressed so that
only the file system lists  are  printed.   Entries  in  the
bupsched  file  are  printed under the control of cron.  The
file bupsched should contain lines of four or  more  fields,
separated  by  spaces  or tabs.  The first three fields (the
schedule fields) specify a range of dates  and  times.   The
rest  of  the fields constitute a list of names of file sys-
tems to be printed if ckbupscd is run at  some  time  within
the  range given by the schedule fields.  The general format
is:
     time[,time] day[,day] month[,month] fsyslist
where:

time Specifies an hour of the day (0 through 23), matching any time within that hour, or an exact time of day (0:00 through 23:59).

day Specifies a day of the week (sun through sat) or day of the month (1 through 31).

month Specifies the month in which the time and day fields are valid. Legal values are the month numbers (1 through 12).

fsyslist

The rest of the line is taken to be a file system list to print. Multiple time, day, and month specifications may be separated by commas, in which case they are evaluated left to right. An asterisk (*) always matches the current value for the field in which it appears. A line beginning with a sharp sign (#) is interpreted as a comment and ignored. The longest line allowed (including continuations) is 1024 characters.

EXAMPLES

The following are examples of lines which could appear in the /etc/bupsched file.

06:00-09:00  fri  1,2,3,4,5,6,7,8,9,10,11  /applic

Prints the file system name /applic if ckbupscd is run between 6:00 A.M. and 9:00 A.M. any Friday during any month except December.

00:00-06:00,16:00-23:59  1,2,3,4,5,6,7  1,8  /

Prints a reminder to backup the root (/) file system if ckbupscd is run between the times of 4:00 P.M. and 6:00 A.M. during the first week of August or January.

FILES

/etc/bupsched specification file containing times and file system to back up

SEE ALSO

cron(1M).
echo(1), sh(1), sysadm(1) in the User's Reference Manual.

NOTES

ckbupscd will report file systems due for backup if invoked any time in the window. It does not know that backups may have just been done. ckbupscd will be removed in the next release of System V.