328N/A.sp 3

328N/A.tl ''Ksh Features That Are Obsolete in Ksh93''

328N/A.sp 2

328N/A.AL 1

328N/A.LI

328N/AUsing a pair of grave accents \^\fB\(ga\fR ... \fB\(ga\fR\^

328N/Afor command substition. Use \fB$(\fR ... \fB)\fR instead.

328N/A.LI

328N/A.B FCEDIT

328N/Ais an obsolete name for

328N/Athe default editor name for the

328N/A.B hist

328N/Acommand.

328N/A.B FCEDIT

328N/Ais not used when

328N/A.B HISTEDIT

328N/Ais set. Use

328N/A.B HISTEDIT

328N/Ainstead.

328N/A.LI

328N/AThe newtest (\fB[[\fR ... \fB]]\fR) operator

328N/A\fB\-a\fP \fIfile\fP

328N/Ais obsolete. Use

328N/A\fB\-e\fP instead.

328N/A.LI

328N/AThe newtest (\fB[[\fR ... \fB]]\fR) operator

328N/A.BR = ,

328N/Aas used in

328N/A\fIstring\fP \fB=\fP \fIpattern\fP

328N/Ais obsolete. Use

328N/A\fB==\fP instead.

328N/A.LI

328N/AThe following obsolete arithmetic comparisons are also permitted:

328N/A.in +5

328N/A.VL 20

328N/A.LI "\fIexp1\fP \fB\-eq\fP \fIexp2\fP"

328N/ATrue, if

328N/A.I exp1

328N/Ais equal to

328N/A.IR exp2 .

328N/A.LI "\fIexp1\fP \fB\-ne\fP \fIexp2\fP"

328N/ATrue, if

328N/A.I exp1

328N/Ais not equal to

328N/A.IR exp2 .

328N/A.LI "\fIexp1\fP \fB\-lt\fP \fIexp2\fP"

480N/ATrue, if

480N/A.I exp1

480N/Ais less than

328N/A.IR exp2 .

328N/A.LI "\fIexp1\fP \fB\-gt\fP \fIexp2\fP"

328N/ATrue, if

328N/A.I exp1

328N/Ais greater than

328N/A.IR exp2 .

328N/A.LI "\fIexp1\fP \fB\-le\fP \fIexp2\fP"

328N/ATrue, if

328N/A.I exp1

328N/Ais less than or equal to

328N/A.IR exp2 .

328N/A.LI "\fIexp1\fP \fB\-ge\fP \fIexp2\fP"

328N/ATrue, if

328N/A.I exp1

328N/Ais greater than or equal to

328N/A.IR exp2 .

328N/A.LE \" End .VL

328N/A.in -5

328N/A.LI

328N/AUsing test -t or [ -t ] without specifying the file unit number.

328N/A.LI

328N/AThe

.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option to the \fBset\fR builtin is obsolete.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