set(1f) [opensolaris man page]

set(1F) 							   FMLI Commands							   set(1F)

NAME

       set, unset - set and unset local or global environment variables

SYNOPSIS

       set [-l variable [=value]] ...

       set [-e variable [=value]] ...

       set [-ffile variable [=value]]... ...

       unset -l variable...

       unset -f file variable...

DESCRIPTION

       The set command sets variable in the environment, or adds variable=value to file. If variable is not equated it to a value, set expects the
       value to be on stdin. The unset command removes variable. Note that the FMLI predefined, read-only variables (such as ARG1), may not be set
       or unset.

       Note  that  at  least one of the above options must be used for each variable being set or unset. If you set a variable with the -ffilename
       option, you must thereafter include filename in references to that variable. For example, ${(file)VARIABLE}.

       FMLI inherits the UNIX environment when invoked.

OPTIONS

       -l	 Sets or unsets the specified variable in the local environment. Variables set with -l will not be inherited by processes  invoked
		 from FMLI.

       -e	 Sets  the specified variable in the UNIX environment. Variables set with -e will be inherited by any processes started from FMLI.
		 Note that these variables cannot be unset.

       -ffile	 Sets or unsets the specified variable in the global environment. The argument file is the name, or pathname, of a file containing
		 lines of the form variable=value. file will be created if it does not already exist. Note that no space intervenes between -f and
		 file.

EXAMPLES

       Example 1 A sample output of set command.

       Storing a selection made in a menu:

	 name=Selection 2
	 action=`set -l SELECTION=2`close

NOTES

       Variables set to be available to the UNIX environment (those set using the -e option) can only be set for the current fmli process and  the
       processes it calls.

       When  using the -f option, unless file is unique to the process, other users of FMLI on the same machine will be able to expand these vari-
       ables, depending on the read/write permissions on file.

       A variable set in one frame may be referenced or unset in any other frame. This includes local variables.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       env(1), sh(1), attributes(5)

SunOS 5.11							    5 Jul 1990								   set(1F)

Check Out this Related Man Page

unset(n)						       Tcl Built-In Commands							  unset(n)

__________________________________________________________________________________________________________________________________________________

NAME

       unset - Delete variables

SYNOPSIS

       unset ?-nocomplain? ?--? ?name name name ...?
_________________________________________________________________

DESCRIPTION

       This  command removes one or more variables.  Each name is a variable name, specified in any of the ways acceptable to the set command.	If
       a name refers to an element of an array then that element is removed without affecting the rest of the array.  If a  name  consists  of	an
       array name with no parenthesized index, then the entire array is deleted.  The unset command returns an empty string as result.	If -nocom-
       plain is specified as the first argument, any possible errors are suppressed.  The option may not be abbreviated, in order to  disambiguate
       it  from possible variable names.  The option -- indicates the end of the options, and should be used if you wish to remove a variable with
       the same name as any of the options.  If an error occurs, any variables after the named one causing the error not deleted.   An	error  can
       occur  when the named variable does not exist, or the name refers to an array element but the variable is a scalar, or the name refers to a
       variable in a non-existent namespace.

EXAMPLE

       Create an array containing a mapping from some numbers to their squares and remove the array elements for non-prime numbers:
	      array set squares {
		  1 1	 6 36
		  2 4	 7 49
		  3 9	 8 64
		  4 16	 9 81
		  5 25	10 100
	      }

	      puts "The squares are:"
	      parray squares

	      unset squares(1) squares(4) squares(6)
	      unset squares(8) squares(9) squares(10)

	      puts "The prime squares are:"
	      parray squares

SEE ALSO

       set(n), trace(n), upvar(n)

KEYWORDS

       remove, variable

Tcl									8.4								  unset(n)

Linux and UNIX Man Pages

set(1f) [opensolaris man page]

Check Out this Related Man Page