environ - user environment
extern char **environ;
An array of strings called the ``environment'' is made
execve(2) when a process begins. By convention these
strings have the
form name=value. The following variables are recognized by
BLOCKSIZE The size of the block units used by several commands, most notably
df(1), du(1), and ls(1). May be specified
in units of a
byte by specifying a number, in units of a kilobyte by specifying
a number followed by `K' or `k', in units
of a megabyte
by specifying a number followed by `M' or `m', or
in units of
a gigabyte by specifying a number followed by `G'
Sizes less than 512 bytes or greater than a gigabyte are ignored.
EXINIT A list of startup commands read by ex(1) and
HOME The user's login directory, set by login(1) from
LOGNAME The login name of the user.
PATH The sequence of directories, separated by colons,
csh(1), sh(1), ksh(1), system(3), execvp(3), etc.
for an executable file. Initially set to the
_PATH_DEFPATH by login(1), traditionally
expanded to include /usr/sbin, /sbin,
/usr/local/bin in OpenBSD.
PRINTER The name of the default printer to be used by
PWD The current working directory.
SHELL The full pathname of the user's login shell.
TERM The kind of terminal for which output is to be
information is used by commands such as nroff(1)
which may exploit
special terminal capabilities. See
/usr/share/misc/termcap (termcap(5)) for a list
TERMCAP The string describing the terminal in TERM, or,
if it begins
with a `/', the name of the termcap file. See
termcap(5), and termcap(3).
TERMPATH A sequence of pathnames of termcap files, separated by colons
or spaces, which are searched for terminal descriptions in the
order listed. Having no TERMPATH is equivalent
to a TERMPATH
of $HOME/.termcap:/etc/termcap. TERMPATH is ignored if
TERMCAP contains a full pathname.
TMPDIR The directory in which to store temporary files.
use either /tmp or /var/tmp. Setting
will make them use another directory.
TZ The timezone to use when displaying dates. The
is a pathname relative to /usr/share/zoneinfo.
the command env TZ=US/Pacific date displays the
in California. See tzset(3) for more information.
USER Deprecated synonym of LOGNAME (for backwards compatibility).
Further names may be placed in the environment by the export
name=value arguments in sh(1), or by the setenv command if
csh(1). It is unwise to change certain sh(1) variables that
exported by .profile files, such as MAIL, PS1, PS2,
and IFS, unless
you know what you are doing.
csh(1), env(1), ex(1), login(1), sh(1), execve(2), execle(3), system(3),
termcap(3), tzset(3), termcap(5)
The environ manual page appeared in 4.2BSD.
OpenBSD 3.6 April 19, 1994
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