ckbupscd(1M) — ADMINISTRATOR COMMANDS
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 systems 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/bupschedspecification file containing times and file system to back up
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.