ENVIRON(5)               DOMAIN/IX SYS5                ENVIRON(5)



NAME
     environ - environment variables

DESCRIPTION
     The exec(2) call makes an array of strings called the
     "environment" available when a process is started.  By con-
     vention, these strings have the form "name=value".  The fol-
     lowing names are used by various commands:

     PATH           The sequence of directory prefixes that
                    sh(1), time(1), nice(1), nohup(1), and so on,
                    apply in searching for a file specified by an
                    incomplete pathname.  The prefixes are
                    separated by colons (:).  Login(1) sets
                    PATH=:/bin:/usr/bin.

     HOME           Name of the user's log-in directory, set upon
                    log-in.

     TERM           The kind of terminal for which output is to
                    be prepared.

     TZ             Time zone information. The format is XXXNZZZ
                    where XXX is standard local time zone abbre-
                    viation, N is the difference in hours from
                    Greenwich Mean Time, and ZZZ is the abbrevia-
                    tion for the daylight-saving local time zone,
                    if any; for example, EST5EDT.

     NODETYPE       Model number of the DOMAIN Workstation on
                    which the process is running, e.g., dn300.

     PROJECT        Project associated with log-in name.

     ORGANIZATION   Organization associated with log-in name.

     NODEID         Hexadecimal ID of current network node, e.g.,
                    2b1f.

     NAMECHARS      A list of characters that the naming server
                    will interpret as syntax, rather than as
                    literal characters.  NAMECHARS is set by
                    default to the string ``~`\'' (tilde,
                    backquote, backslash).  Tilde maps to the
                    current naming directory (typically the same
                    as $HOME).  Backquote, when encountered in
                    the string "`node_data," specifies the direc-
                    tory //this_node/sys/node_data.  Backslash, a
                    shorthand for "parent directory", is
                    equivalent to .. (dotdot).



Printed 12/4/86                                         ENVIRON-1

ENVIRON(5)               DOMAIN/IX SYS5                ENVIRON(5)



     SYSTYPE        Version of DOMAIN/IX currently set as "sys-
                    type".

     SBRKSIZE       SBRKSIZE is ignored at SR9.5 (see
                    set_sbrk_size(2). In earlier releases, it was
                    set to a decimal integer and was equivalent,
                    in a running program, to having made a call
                    to the function set_sbrk_size.  If no argu-
                    ment is specified,

     Further names may be placed in the environment by the export
     command and "name=value" arguments in sh(1), or by exec(2).

NOTES
     It is unwise to use the names MAIL, PS1, PS2, and IFS.  They
     conflict with shell variables that are frequently exported
     by .profile files:

RELATED INFORMATION
     env(1), login(1), sh(1), mm(1), nice(1), nohup(1), time(1),
     exec(2).
































ENVIRON-2                                         Printed 12/4/86