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false

Do nothing, unsuccessfully (exit with 1)

command Shell UtilitiesScriptingBuilt-in

Overview

The `false` command does nothing except exit with a status code of 1, which indicates failure. It is used in shell scripts to provide a command that always fails or to create conditions that are initially false.

Syntax

false [ignored_arguments]

Common Options

[arguments]

Any arguments provided are typically ignored.

--help

(GNU version) Display help and exit.

--version

(GNU version) Output version information and exit.

Examples

$ false

Exits with a status code of 1.

$ if false; then echo "Will not print"; else echo "Failure!"; fi

The `else` block will execute because `false` indicates failure.

$ false || echo "This will run because false failed."

Uses the OR (||) operator; the second command runs if the first fails.

$ ! false

Negates the exit status of `false`, resulting in an overall success (exit status 0).

Related Commands

awk

Pattern scanning and processing language

sed

Stream editor for filtering and transforming text

curl

Transfer data from or to a server

jobs

List active jobs

history

Display command history

fg

Bring a job to the foreground

falsefailureexit 1scriptingconditionboolean