unset remove KornShell variable or function	KornShell Built-in
	SYNOPSIS DESCRIPTION   Options DIAGNOSTICS PORTABILITY NOTE SEE ALSO

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SYNOPSIS

unset name...

unset -fv name...

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DESCRIPTION

Calling unset with no options removes the value and attributes of each KornShell variable name.

unset cannot remove names which have been set read-only.

Options

-f

removes the definition of each KornShell function name.

-v

removes the attribute and value of the variable name. (This is the default if no options are specified.)

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DIAGNOSTICS

Possible exit status values are:

0

Successful completion.

1

Failure due to an invalid command line option.

2

Failure due to an invalid command line argument.

Otherwise, unset returns the number of specified names which are invalid, not currently set, or read-only.

"name" : readonly variable

The given name cannot be deleted because it has been marked read-only.

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PORTABILITY

POSIX.2. x/OPEN Portability Guide 4.0.

unset is a built-in command of the Bourne and Korn shells on UNIX System V.

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NOTE

This is a special built-in command of the MKS KornShell.

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SEE ALSO

Commands:

readonly, sh