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ENVIRON(5)		      File Formats Manual		    ENVIRON(5)

NAME
       environ - user environment

SYNOPSIS
       extern char **environ;

DESCRIPTION
       An  array  of  strings  called  the  `environment' is made available by
       exec(2) when a process begins.  By convention these  strings  have  the
       form `name=value'.  The following names are used	by various commands:

       PATH   The sequence of directory	prefixes that sh, time,	nice(1), etc.,
	      apply in searching for a file known by an	incomplete path	 name.
	      The    prefixes	are   separated	  by   `:'.    Login(1)	  sets
	      PATH=:/bin:/usr/bin.

       HOME   A	user's login directory,	set by login(1)	from the password file
	      passwd(5).

       TERM   The  kind	 of terminal for which output is to be prepared.  This
	      information is used by commands, such as nroff or	plot(1), which
	      may  exploit  special  terminal capabilities.  See term(7) for a
	      list of terminal types.

       Further names may be placed in the environment by  the  export  command
       and  `name=value'  arguments  in	sh(1), or by exec(2).  It is unwise to
       conflict	with certain Shell variables that are frequently  exported  by
       `.profile' files: MAIL, PS1, PS2, IFS.

SEE ALSO
       exec(2),	sh(1), term(7),	login(1)

								    ENVIRON(5)

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO

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