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1.1       root        1: .TH BACKUP 8
                      2: .CT 1 sa_nonmortals
                      3: .SH NAME
                      4: backup \- backup client administration
                      5: .SH SYNOPSIS
                      6: .B /usr/lib/backup/sel
                      7: .PP
                      8: .B /usr/lib/backup/fcheck
                      9: .I maxsize
                     10: .I maxdays
                     11: .I files ...
                     12: .PP
                     13: .B /usr/lib/backup/act
                     14: [
                     15: .I stat
                     16: ]
                     17: .SH DESCRIPTION
                     18: These programs select and back up files
                     19: to the incremental file backup system,
                     20: .IR backup (1).
                     21: .PP
                     22: .I Sel
                     23: prints on the standard output
                     24: a list of filenames that might need to be backed up.
                     25: The initial version
                     26: picks out files that have been changed in the past few days,
                     27: skipping huge files
                     28: and eliding boring names like
                     29: .BR core .
                     30: .I Sel
                     31: is a shell script;
                     32: the local administrator is expected to customize it.
                     33: .PP
                     34: .I Fcheck
                     35: is a fast,
                     36: specialized file scanning program,
                     37: used by
                     38: .IR sel .
                     39: It examines each of the
                     40: .IR files ,
                     41: descending into directories,
                     42: and prints the name of each file
                     43: that has been changed in the last
                     44: .I maxdays
                     45: days and is smaller than
                     46: .I maxsize
                     47: kilobytes.
                     48: Symbolic links are followed when presented as arguments,
                     49: examined but not followed otherwise.
                     50: .PP
                     51: .I Act
                     52: reads a list of filenames from the standard input.
                     53: It searches the backup database
                     54: .IR backup (5)
                     55: for the current version of each file,
                     56: and backs up files that aren't registered.
                     57: .PP
                     58: By default,
                     59: .I act
                     60: sends errors by
                     61: .IR mail (1)
                     62: to user
                     63: .BR backup .
                     64: If the
                     65: .I stat
                     66: argument is non-empty,
                     67: errors and additional comforting chatter
                     68: are printed on the standard output instead.
                     69: .PP
                     70: One way to request automatic backups is to run
                     71: .IP
                     72: .L
                     73: /usr/lib/backup/sel | /usr/lib/backup/act
                     74: .LP
                     75: regularly from
                     76: .IR cron (8).
                     77: Particular files may be backed up by hand at any time
                     78: by running
                     79: .I act
                     80: with a list of filenames.
                     81: There are no special permissions involved;
                     82: any user may run
                     83: .IR act .
                     84: .SH SEE ALSO
                     85: .IR backup (1),
                     86: .IR backup (5)
                     87: .br
                     88: A. Hume, `The File Motel: An Owner's Manual',
                     89: this manual,
                     90: Volume 2

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