kbdpipe(1) — DG/UX 5.4.2A



kbdpipe(1)                       DG/UX 5.4.2                      kbdpipe(1)


NAME
       kbdpipe - use the KBD module in a pipeline

SYNOPSIS
       kbdpipe -t table [-f tablefile] [-F] [-o outfile] [infile(s)]

DESCRIPTION
       kbdpipe allows the use of KBD tables as pipeline elements between
       user programs [see kbdcomp(1M) and attkbd(7) for general
       descriptions of the module and its capabilities].  The kbdpipe
       command is mostly useful in codeset conversion applications.  If an
       output file is given, then all infiles are piped to the given output
       file.  With no arguments other than -t, standard input is converted
       and sent to standard output.

       The required option argument -t identifies the table to be used for
       conversion.  If the table has already been loaded as a shared table
       it is attached.  If, however, the table has not been loaded, an
       attempt is made to load it.  If the given table name is not an
       absolute pathname then the name of the system mapping library is pre-
       pended to the argument, and an attempt is made to load the table from
       the resulting pathname (that is, it becomes an argument to the
       loader, kbdload).  Assuming the table can be loaded, it is attached.

       The argument to -f defines the filename from which the table will be
       loaded, overriding the default action described above.  The file is
       loaded (in its entirety), and the named table attached.  This option
       should be used if the default action would fail.

       The output file specified by -o must not already exist (a safety
       feature.)  The option -F may be used to override the check for
       existence of the output file; in this case, any existing outfile will
       be truncated before being written.

EXAMPLES
       The following example converts two input files into relative nonsense
       by mapping ASCII into Dvorak keyboard equivalents using the Dvorak
       table.  The table is assumed to reside in the file
       /usr/lib/kbd/Dvorak.  The existing output file is forcefully
       overwritten:
            kbdpipe -F -t Dvorak -o iapxai.vj file1 file2

       The following example loads the Dvorak table from a different file,
       then converts standard input to standard output.  The Dvorak table
       (assumed to be non-resident) is explicitly loaded from an absolute
       path beginning at the user's home directory:
            kbdpipe -t Dvorak -f $HOME/tables/Dvorak.tab

LIMITATIONS
       Because kbdpipe uses the kbdload command to load tables, it cannot
       resolve link references.  Therefore, if a composite table is to be
       used, the relevant portions must either be already loaded and public,
       or be contained in the file indicated (via the -f option) on the
       command line; in this case, the composite elements must be loaded



Licensed material--property of copyright holder(s)                         1



kbdpipe(1)                       DG/UX 5.4.2                      kbdpipe(1)


       earlier than the link entry.

CAVEATS
       Users may now use KBD tables in programs at user level, by just
       opening a pipe, pushing the module, and setting via related commands;
       there is thus no need to use kbdpipe.  This command may not be
       supported in future releases of the system.

       The essentially similar iconv(1) program is considerably faster than
       kbdpipe.

FILES
       /usr/lib/kbd        directory containing system standard table files

SEE ALSO
       kbdload(1M), kbdset(1), attkbd(7).









































Licensed material--property of copyright holder(s)                         2

Museum

Related Articles