119 lines
2.3 KiB
Groff
119 lines
2.3 KiB
Groff
|
||
|
||
BACKUP(8) Minix Programmer's Manual BACKUP(8)
|
||
|
||
|
||
NAME
|
||
backup - backup files
|
||
|
||
SYNOPSIS
|
||
backup [-djmnorstvz] dir1 dir2
|
||
|
||
OPTIONS
|
||
|
||
-d At top level, only directories are backed up
|
||
|
||
-j Do not copy junk: *.Z, *.bak, a.out, core, etc
|
||
|
||
-m If device full, prompt for new diskette
|
||
|
||
-n Do not backup top-level directories
|
||
|
||
-o Do not copy *.o files
|
||
|
||
-r Restore files
|
||
|
||
-s Do not copy *.s files
|
||
|
||
-t Preserve creation times
|
||
|
||
-v Verbose; list files being backed up
|
||
|
||
-z Compress the files on the backup medium
|
||
|
||
EXAMPLES
|
||
|
||
backup -mz . /f0 # Backup current directory compressed
|
||
|
||
backup /bin /usr/bin
|
||
# Backup bin from RAM disk to hard disk
|
||
|
||
DESCRIPTION
|
||
|
||
Backup (recursively) backs up the contents of a given directory and its
|
||
subdirectories to another part of the file system. It has two typical
|
||
uses. First, some portion of the file system can be backed up onto 1 or
|
||
more diskettes. When a diskette fills up, the user is prompted for a new
|
||
one. The backups are in the form of mountable file systems. Second, a
|
||
directory on RAM disk can be backed up onto hard disk. If the target
|
||
directory is empty, the entire source directory is copied there,
|
||
optionally compressed to save space. If the target directory is an old
|
||
backup, only those files in the target directory that are older than
|
||
similar names in the source directory are replaced. Backup uses times
|
||
for this purpose, like make. Calling Backup as Restore is equivalent to
|
||
using the -r option; this replaces newer files in the target directory
|
||
with older files from the source directory, uncompressing them if
|
||
|
||
|
||
1
|
||
|
||
|
||
|
||
BACKUP(8) Minix Programmer's Manual BACKUP(8)
|
||
|
||
|
||
necessary. The target directory contents are thus returned to some
|
||
previous state.
|
||
|
||
SEE ALSO
|
||
tar(1).
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
2
|
||
|