EMC Celerra Command Reference Manual page 279

The server Commands
Read (-r)
server_archive extracts the members of the archive file read from the
archive, with pathnames matching the specified patterns. The archive
format and blocking are automatically determined on input. When an
extracted file is a directory, the entire file hierarchy rooted at that
directory is extracted.
Note: Ownership, access, and modification times, and file mode of the
extracted files are discussed in more detail under the -p option.
Write (-w)
server_archive writes an archive containing the file operands to
archive using the specified archive format. When no file operands are
specified, a list of files to copy with one per line is read from standard
input. When a file operand is also a directory, the entire file hierarchy
rooted at that directory is included.
Copy (-r -w)
server_archive copies the file operands to the destination directory.
When no file operands are specified, a list of files to copy with one per
line is read from the standard input. When a file operand is also a
directory, the entire file hierarchy rooted at that directory is included.
The effect of the copy is as if the copied files were written to an
archive file and then subsequently extracted, except that there may be
hard links between the original and the copied files (see the -l option
below).
CAUTION
!
The destination directory must exist and must not be one of the file
operands or a member of a file hierarchy rooted at one of the file
operands. The result of a copy under these conditions is
unpredictable.
While processing a damaged archive during a read or list operation,
server_archive attempts to recover from media defects and searches
through the archive to locate and process the largest number of
archive members possible (see the -E option for more details on error
handling).
OPERANDS The directory operand specifies a destination directory pathname. If
the directory operand does not exist, or it is not writable by the user,
or it is not directory name, server_archive exits with a non-zero exit
status.
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server_archive