2.11BSD/new/man/cat1/ansitape.0
ANSITAPE(LOCAL) UNIX Programmer's Manual ANSITAPE(LOCAL)
NAME
ansitape - ANSI standard tape handler
SYNOPSIS
ansitape [key] [keyargs] [files]
DESCRIPTION
_A_n_s_i_t_a_p_e reads and writes magnetic tapes written in ANSI
standard format (called ``Files-11'' by DEC). Tapes written
by _a_n_s_i_t_a_p_e are labeled with the first 6 characters of the
machine name by default. Actions are controlled by the _k_e_y
argument. The _k_e_y is a string of characters containing at
most one function letter. Other arguments to the command
are a tape label and file names specifying which files are
to be written onto or extracted from the tape.
The function portion of the key is specified by one of the
following letters:
r The named files are written at the end of the tape.
The c function implies this.
x The named files are extracted from the tape. If no
file argument is given, the entire contents of the
tape is extracted. Note that if the tape has dupli-
cated file names, only the last file of a given name
can be extracted.
t The names of the specified files are listed each
time they occur on the tape. If no file argument is
given, all files on the tape are listed.
c Create a new tape; writing begins at the beginning
of the tape instead of after the last file. This
command implies r.
The following characters may be used in addition to the
letter which selects the function desired.
f This argument allows the selection of a different
tape device. The next word in the keyargs list is
taken to be the full name of a device to write the
tape on. The default is /dev/rmt12.
n The n option allows the user to specify as the next
argument in the keyargs list, a control file con-
taining the names of files to put on the tape. If
the file name is '-', the control file will,
instead, be read from standard input. The control
file contains one line for each file to be placed on
the tape. Each line has two names, the name of the
file on the local machine, and the name it is to
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ANSITAPE(LOCAL) UNIX Programmer's Manual ANSITAPE(LOCAL)
have when placed on the tape. This allows for more
convenient flattening of hierarchies when placing
them on tape. If the second name is omitted, the
UNIX file name will be used on the tape also. This
argument can only be used with the r and c func-
tions.
l The l option allows the user to specify the label to
be placed on the tape. The next argument in the
keyargs list is taken as the tape label, which will
be space padded or truncated to six characters.
This option is meaningless unless c is also speci-
fied.
v Normally _a_n_s_i_t_a_p_e works relatively silently. The v
(verbose) option causes it to type information about
each file as it processes it.
b The b option allows the user to select the blocksize
to be used for the tape. By default, _a_n_s_i_t_a_p_e uses
the maximum block size permitted by the ANSI stan-
dard, 2048. Some systems will permit a much large
block size, and if large files are being put on the
tape it may be advantageous to do so. _A_n_s_i_t_a_p_e will
take the next argument of the keyargs list as the
blocksize for the tape. Values below 18 or above
32k will be limited to that range. The standard
scale factors b=512 and k=1024 are accepted.
_A_n_s_i_t_a_p_e will not copy directories, character or block spe-
cial files, symbolic links, sockets, or binary executables.
Attempts to put these on tape will result in warnings, and
they will be skipped completely.
FILES
/dev/rmt12
DIAGNOSTICS
A warning message will be generated when a record exceeds
the maximum record length and the affected file will be
truncated.
BUGS
Ansitape quietly truncates names longer than 17 characters.
ANSI 'f' format files can be read but not written.
Multivolume tapes can not be handled.
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