home *** CD-ROM | disk | FTP | other *** search
- .help wtar Dec85 softools
- .ih
- NAME
- wtar -- write TAR format archive file
- .ih
- USAGE
- wtar [-flags] [-f archive] [files]
- .ih
- ARGUMENTS
- .ls 12 -d
- Print debug messages.
- .le
- .ls 12 -o
- Omit binary files.
- .le
- .ls 12 -t
- Print the name of each file as it is written or omitted.
- .le
- .ls 12 -v
- Verbose mode; print more information about each file.
- .le
- .ls 12 -f archive
- The tar format file to be written, i.e., "stdout", a magtape specification
- (e.g., "mta"), or the IRAF virtual filename of a disk file. The default
- is the standard output.
- .le
- .ls 12 files
- The names of the files or root directories of directory trees to be written
- to the archive file. If no files are specified "." (the directory tree rooted
- at the current directory) is assumed.
- .le
- .ih
- DESCRIPTION
- The named files and directories are written to the indicated UNIX "tar" format
- output file. Any directories in the file list are recursively descended.
- The named directories should be subdirectories of the current directory when
- \fIwtar\fR is called. Binary files may be omitted if desired, e.g., when
- transporting software to a different host, or when making a backup of a large
- system which would otherwise exceed the capacity of a single reel of tape.
- All file, directory, and magtape names conform to the IRAF standard.
-
- The output file is normally either a disk file (e.g., if the transport medium
- is an electronic network), or a magtape file. If the output file is a magtape
- the tape is rewound before the archive is written, only one file may be written
- on a single reel of tape, and the entire file must fit on a single reel of
- tape. The blocking factor is fixed at 10240 bytes per record. Note that a
- disk archive file can be encoded and pushed through a modem to transport
- modest size directories to a remote site with minimum delay.
-
- The TAR format file written by \fIwtar\fR conforms to the UNIX standard except
- that [1] no link information is preserved, [2] the user and group numbers
- may not be preserved (they are preserved in the UNIX version of \fIwtar\fR),
- and [3] some versions of \fIwtar\fR (e.g., VMS) pad text files at the end
- with extra blank lines.
-
- All \fIwtar\fR filename arguments are IRAF virtual filenames (or host
- filenames). Magtape devices may be specified by their IRAF logical device
- name (if the "dev$devices" file is in place and is up to date), or by the
- host device name, prefixed with a "mt.", e.g., "mt.MUA1" or "mt./dev/rmt9".
- .ih
- EXAMPLES
- 1. Make a source-only archive of the IRAF system on drive B at the default
- density.
-
- .nf
- cl> cd iraf
- cl> wtar -of mtb
- .fi
-
- 2. Make a disk archive of the LIB and PKG directory trees in your home
- directory.
-
- cl> wtar -f home$pkgarc lib pkg
-
- 3. Examine the resultant file to make sure everything worked correctly.
-
- cl> rtar -tvf home$pkgarc
-
-
- 4. Make a disk archive, using a host filename for the output file.
-
- cl> wtar -f /tmp2/arc lib pkg sys
- .ih
- SEE ALSO
- rtar, rmbin
-