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           luit [ options ] [ -- ] [ program [ args ] ]


           Luit is a filter that can be run between an arbitrary application and a
           UTF-8 terminal emulator.  It will convert application output  from  the
           locale's  encoding  into  UTF-8,  and convert terminal input from UTF-8
           into the locale's encoding.
           An application may also request switching to a different output  encod-
           ing  using ISO 2022 and ISO 6429 escape sequences.  Use of this feature
           is  discouraged:  multilingual  applications  should  be  modified   to
           directly generate UTF-8 instead.
           Luit  is  usually  invoked transparently by the terminal emulator.  For
           information about running luit from  the  command  line,  see  EXAMPLES


           -h     Display some summary help and quit.
           -list  List the supported charsets and encodings, then quit.
           -V     Print luit's version and quit.
           -v     Be verbose.
           -c     Function  as  a simple converter from standard input to standard
           -p     In startup, establish a handshake between parent and child  pro-
                  cesses.  This is needed for some systems, e.g., FreeBSD.
           -x     Exit  as  soon  as  the child dies.  This may cause luit to lose
                  data at the end of the child's output.
           -argv0 name
                  Set the child's name (as passed in argv[0]).
           -encoding encoding
                  Set up luit to use encoding rather  than  the  current  locale's
           +oss   Disable interpretation of single shifts in application output.
           +ols   Disable  interpretation of locking shifts in application output.
           +osl   Disable interpretation of character set selection  sequences  in
                  application output.
           +ot    Disable  interpretation  of all sequences and pass all sequences
                  in application output to the terminal unchanged.  This may  lead
                  usually g0.
           -gr gk Set  the  initial  assignment of GR.  The default depends on the
                  locale, and is usually g2 except for EUC locales,  where  it  is
           -g0 charset
                  Set  the  charset initially selected in G0.  The default depends
                  on the locale, but is usually ASCII.
           -g1 charset
                  Set the charset initially selected in G1.  The  default  depends
                  on the locale.
           -g2 charset
                  Set  the  charset initially selected in G2.  The default depends
                  on the locale.
           -g3 charset
                  Set the charset initially selected in G3.  The  default  depends
                  on the locale.
           -ilog filename
                  Log into filename all the bytes received from the child.
           -olog filename
                  Log into filename all the bytes sent to the terminal emulator.
           -alias filename
                  the locale alias file
                  (default: /usr/share/X11/locale/locale.alias).
           --     End of options.


           The  most  typical  use of luit is to adapt an instance of XTerm to the
           locale's encoding.  Current versions of XTerm invoke luit automatically
           when  it  is  needed.  If you are using an older release of XTerm, or a
           different terminal emulator, you may invoke luit manually:
                  $ xterm -u8 -e luit
           If you are running in a UTF-8  locale  but  need  to  access  a  remote
           machine that doesn't support UTF-8, luit can adapt the remote output to
           your terminal:
                  $ LC_ALL=fr_FR luit ssh legacy-machine
           Luit is also useful with applications that hard-wire an  encoding  that
           is  different  from  the one normally used on the system or want to use
           legacy escape sequences for multilingual output.  In  particular,  ver-
           sions  of Emacs that do not speak UTF-8 well can use luit for multilin-
           On systems with SVR4 ("Unix-98") ptys (Linux  version  2.2  and  later,
           SVR4), luit should be run as the invoking user.
           On  systems  without SVR4 ("Unix-98") ptys (notably BSD variants), run-
           ning luit as an ordinary user will leave the tty  world-writable;  this
           is  a security hole, and luit will generate a warning (but still accept
           to run).  A possible solution is to make luit suid  root;  luit  should
           drop  privileges  sufficiently  early  to make this safe.  However, the
           startup code has not been exhaustively audited, and the author takes no
           responsibility for any resulting security issues.
           Luit  will  refuse  to  run if it is installed setuid and cannot safely
           drop privileges.


           None of this complexity should be necessary.  Stateless UTF-8  through-
           out the system is the way to go.
           Charsets with a non-trivial intermediary byte are not yet supported.
           Selecting  alternate  sets  of  control characters is not supported and
           will never be.


           xterm(1), unicode(7), utf-8(7), charsets(7).
           Character Code Structure and Extension Techniques (ISO 2022, ECMA-35).
           Control Functions for Coded Character Sets (ISO 6429, ECMA-48).


           The version of Luit included in this X.Org Foundation release was orig-
           inally  written  by  Juliusz  Chroboczek  <> for the
           XFree86 Project and includes additional contributions  from  Thomas  E.
           Dickey required for newer releases of xterm(1).

    X Version 11 luit 1.1.0 LUIT(1)


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