shift shift KornShell positional parameters	KornShell Built-in
	SYNOPSIS DESCRIPTION EXAMPLE DIAGNOSTICS PORTABILITY NOTE SEE ALSO

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SYNOPSIS

shift [expression]

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DESCRIPTION

shift renames the KornShell positional parameters so that i+nth positional parameter becomes the ith positional parameter, where n is the value of the given arithmetic expression. If you omit expression, the default value is 1. The value of expression must be between zero and the number of positional parameters ($#), inclusive. The value of $# is updated.

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EXAMPLES

The commands:

set a b c d
shift 2
echo $*

produce:

c d

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DIAGNOSTICS

Possible exit status values are:

0

Successful completion.

1

Failure because the expression had a negative value or was greater than the number of positional parameters.

bad shift count expr

You specified an expression that did not evaluate to a number in the range from 0 to the number of remaining positional parameters.

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PORTABILITY

POSIX.2. x/OPEN Portability Guide 4.0.

Allowing an expression, rather than just a number, is an extension found in the KornShell.

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NOTE

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

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SEE ALSO

Commands:

set, sh