NAME

finc − fast incremental backup

SYNOPSIS

/usr/sbin/finc [selection-criteria] file-system raw-tape

DESCRIPTION

finc selectively copies the input file-system to the output raw-tape.  The cautious will want to mount the input file-system read-only to ensure an accurate backup, although acceptable results can be obtained in read-write mode.  The tape must be previously labelled by labelit.  The selection is controlled by the selection-criteria, accepting only those inodes/files for whom the conditions are true.

It is recommended that production of a finc tape be preceded by the ff command, and the output of ff be saved as an index of the tape’s contents.  Files on a finc tape may be recovered with the frec command. 

The argument n in the selection-criteria which follow is used as a decimal integer (optionally signed), where +n means more than n, −n means less than n, and n means exactly n. A day is defined as a period of 24 hours.

−a n True if the file has been accessed in n days. 

−m n True if the file has been modified in n days. 

−c n True if the i-node has been changed in n days. 

−n file True for any file which has been modified more recently than the argument file.

EXAMPLES

To write a tape consisting of all files from file-system /usr modified in the last 48 hours:

finc  −m  −2  /dev/rdsk/m328_c1d0s2  /dev/rSA/ctape1

SEE ALSO

ff(1M), frec(1M), labelit(1M), cpio(1). 

NOTE

The raw device is required when providing both the file system and the tape to finc.  Failure to do so will cause an error. 

  —  Essential Utilities