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-.sp 3
-.tl ''Ksh Features That Are Obsolete in Ksh93''
-.sp 2
-.AL 1
-.LI
-Using a pair of grave accents \^\fB\(ga\fR ... \fB\(ga\fR\^
-for command substition.  Use \fB$(\fR ... \fB)\fR instead.
-.LI
-.B FCEDIT
-is an obsolete name for
-the default editor name for the
-.B hist
-command.
-.B FCEDIT
-is not used when
-.B HISTEDIT
-is set.  Use
-.B HISTEDIT
-instead.
-.LI
-The newtest (\fB[[\fR ... \fB]]\fR) operator
-\fB\-a\fP \fIfile\fP
-is obsolete.  Use
-\fB\-e\fP instead.
-.LI
-The newtest (\fB[[\fR ... \fB]]\fR) operator
-.BR = ,
-as used in
-\fIstring\fP \fB=\fP \fIpattern\fP
-is obsolete.  Use
-\fB==\fP instead.
-.LI
-The following obsolete arithmetic comparisons are also permitted:
-.in +5
-.VL 20
-.LI "\fIexp1\fP \fB\-eq\fP \fIexp2\fP"
-True, if
-.I exp1
-is equal to
-.IR exp2 .
-.LI "\fIexp1\fP \fB\-ne\fP \fIexp2\fP"
-True, if
-.I exp1
-is not equal to
-.IR exp2 .
-.LI "\fIexp1\fP \fB\-lt\fP \fIexp2\fP"
-True, if
-.I exp1
-is less than
-.IR exp2 .
-.LI "\fIexp1\fP \fB\-gt\fP \fIexp2\fP"
-True, if
-.I exp1
-is greater than
-.IR exp2 .
-.LI "\fIexp1\fP \fB\-le\fP \fIexp2\fP"
-True, if
-.I exp1
-is less than or equal to
-.IR exp2 .
-.LI "\fIexp1\fP \fB\-ge\fP \fIexp2\fP"
-True, if
-.I exp1
-is greater than or equal to
-.IR exp2 .
-.LE		\"	End .VL
-.in -5
-.LI
-Using test -t or [ -t ] without specifying the file unit number.
-.LI
-The
-.B \-k
-option to the \fBset\fR builtin is obsolete.  It causes
-.I all\^
-variable assignment arguments are placed in the environment,
-even if they occur after the command name.
-The following
-first prints
-.B "a=b c"
-and then
-.BR c :
-There is no alternative.
-.LI
-The obsolete
-.B \-xf
-option of the
-.B typeset
-command allows a function to be exported
-to scripts that are executed without a separate
-invocation of the shell.
-Functions that need to be defined across separate
-invocations of the shell should
-be placed in a directory and the
-.B FPATH
-variable should contains the name of this directory.
-They may also
-be specified in the
-.B ENV
-file with the 
-.B \-xf
-option of
-.BR typeset .
-.LI
-The shell environment variable
-.B FCEDIT
-is obsolete.  Use
-.B HISTEDIT
-instead.
-.LI
-In the
-.B \-s
-option
-(to \fBfc\fR or \fBhist\fR command???)
-(
-and in obsolete versions, the editor name
-.B \-
-)
-is used to skip the editing phase and
-to re-execute the command.
-.LI
-The
-.B \-t
-option to \fBalias\fR builtin is is obsolete.  It
-is used to set and list tracked aliases.
-There is no replacement.
-.LI
-The shell command line option
-.B \-t
-is obsolete.  This option cause the shell to exit after reading
-and executing one command.  The is no replacement (although ending
-\&"command" with the exit builtin should have the same effect).
-.LI
-As an obsolete feature of the "set" builtin,
-if the first
-.I arg\^
-is
-.B \-
-then the
-.B \-x
-and
-.B \-v
-options are turned off and the next
-.I arg
-is treated as the first argument.
-Using
-.B \+
-rather than
-.B \-
-causes these options to be turned off.
-These options can also be used upon invocation of the shell.
-.LE
-