history display KornShell command history	KornShell Built-in
	SYNOPSIS DESCRIPTION   Options ENVIRONMENT VARIABLES DIAGNOSTICS PORTABILITY NOTE SEE ALSO

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SYNOPSIS

history [-nr] [first [last]]

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DESCRIPTION

history displays KornShell commands that you executed previously. These commands make up your command history.

By default, history displays a numbered list of the 16 most recent commands, from earliest to most recent. By specifying values for first and last, you can display a specified range of commands rather than the 16 most recent. For example,

history 1 10

displays commands 1 through 10.

The KornShell stores your command history in the file given by the variable HISTFILE. By default, this is .sh_history on POSIX and UNIX systems. The variable HISTSIZE gives the number of commands kept in the file; if HISTSIZE is not defined, the default is 128.

Options

-n

displays the commands but not the command numbers.

-r

displays commands in reverse order, from most recent to earliest.

history is an alias defined with

alias history='fc -l'

For further information, see fc.

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ENVIRONMENT VARIABLES

HISTFILE

contains the path name of the history file.

HISTSIZE

gives the maximum number of previous commands that are accessible.

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DIAGNOSTICS

Possible exit status values are:

0

Successful completion.

1

Failure due to any of the following:

— missing history file

— could not find the desired command in the history file

2

An invalid command line option or argument.

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PORTABILITY

POSIX.2. x/OPEN Portability Guide 4.0.

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NOTE

This is an alias built into the MKS KornShell.

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SEE ALSO

Commands:

alias, fc, r, sh