Museum

Home

Lab Overview

Retrotechnology Articles

⇒ Online Manual

Media Vault

Software Library

Restoration Projects

Artifacts Sought

Related Articles

cron(8)

echo(1)

sh(1)

sysadm(1)



  ckbupscd(8)                         CLIX                         ckbupscd(8)



  NAME

    ckbupscd - Checks file system backup schedule

  SYNOPSIS

    /etc/ckbupscd [-m]

  FLAGS

    -m   Suppresses an introductory message in the output so that only the
         file system lists are displayed.

  DESCRIPTION

    The ckbupscd command consults the file /etc/bupsched and displays the file
    system lists from lines with date and time specifications matching the
    current time.  Entries in the /etc/bupsched file are displayed under the
    control of cron.

    The System Administration commands bupsched/schedcheck are provided to
    review and edit the /etc/bupsched file.

    The file /etc/bupsched should contain lines of 4 or more fields, separated
    by spaces or tabs.  The first 3 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 displayed 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
               display.

    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 that field.

    A line beginning with a pound sign (#) is interpreted as a comment and



  2/94 - Intergraph Corporation                                              1






  ckbupscd(8)                         CLIX                         ckbupscd(8)



    ignored.

    The longest line allowed (including continuations) is 1024 characters.

  EXAMPLES

    The examples shown are lines that could appear in the /etc/bupsched file.

    1.  This line displays the file system name /applic if ckbupscd is run
        between 6:00am and 9:00am any Friday during any month except December.

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


    2.  This line displays a reminder to backup the root (/) file system if
        ckbupscd is run between the times of 4:00pm and 6:00am during the
        first week of August or January.

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


  FILES

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

  CAUTIONS

    The ckbupscd command will report file systems due for backup if invoked
    any time in the window.  However, ckbupscd does not know that backups may
    have just been taken.

  EXIT VALUES

    Exit values are not valid.

  RELATED INFORMATION

    Commands: cron(8), echo(1), sh(1), sysadm(1)















  2                                              Intergraph Corporation - 2/94




Typewritten Software • bear@typewritten.org • Edmonds, WA 98026