# false

> standard UNIX utility

**Wikidata**: [Q119637](https://www.wikidata.org/wiki/Q119637)  
**Source**: https://4ort.xyz/entity/false

## Summary
`false` is a standard UNIX utility that always returns a failure status, commonly used in shell scripting to indicate an error condition. It is part of the `true` and `false` commands and is distributed as free software under permissive licenses.

## Key Facts
- Aliases: `/bin/false`, `/usr/bin/false`, `false command`
- Part of: `true` and `false` commands
- Instance of: standard UNIX utility, free software
- Different from: `true` (which returns a success status)
- Sitelink count: 9
- Described at: [Open Group Base Specifications, Issue 7](http://pubs.opengroup.org/onlinepubs/9699919799/utilities/false.html)
- Wikipedia languages: de, fr, hu, ja, pl, ru, sv, uk, wa

## FAQs
### Q: What does the `false` command do?
A: The `false` command is a UNIX utility that exits with a non-zero status, indicating failure. It is commonly used in shell scripts to explicitly signal an error condition.

### Q: Is `false` part of the GNU coreutils?
A: While `false` is widely available as part of standard UNIX systems, its inclusion in GNU coreutils is not explicitly stated in the provided source material.

### Q: How is `false` different from `true`?
A: The `false` command returns a non-zero exit status (failure), while the `true` command returns a zero exit status (success). Both are standard UNIX utilities.

### Q: Is `false` free software?
A: Yes, `false` is classified as free software, meaning it can be freely run, studied, modified, and distributed under permissive licenses.

### Q: Where can I find the official documentation for `false`?
A: The official documentation for `false` is available in the [Open Group Base Specifications, Issue 7](http://pubs.opengroup.org/onlinepubs/9699919799/utilities/false.html).

## Why It Matters
The `false` command is a fundamental tool in UNIX and shell scripting, providing a simple way to explicitly signal failure in scripts. Its simplicity and reliability make it a staple in system administration and automation. By returning a non-zero exit status, it ensures that scripts can detect and handle errors predictably. Its inclusion in standard UNIX utilities underscores its importance in maintaining consistency and predictability in scripting environments. While not as widely discussed as other utilities, `false` plays a critical role in ensuring robust error handling in shell scripts.

## Notable For
- Being a minimalist utility that explicitly signals failure in shell scripts.
- Being part of the `true` and `false` command pair, which are essential for scripting logic.
- Being distributed as free software, allowing unrestricted use and modification.
- Having official documentation in the Open Group Base Specifications, ensuring compatibility across UNIX-like systems.

## Body
### Overview
`false` is a standard UNIX utility that exits with a non-zero status, indicating failure. It is commonly used in shell scripting to explicitly signal an error condition, complementing the `true` command, which returns a zero exit status.

### Usage
The `false` command is invoked without arguments and has no options. Its primary use is in shell scripts to control flow, such as in conditional statements or loops, where a non-zero exit status can trigger error handling.

### Technical Details
- **Exit Status**: Always returns 1 (non-zero), indicating failure.
- **Portability**: Available across UNIX-like systems, including Linux and BSD variants.
- **Documentation**: Officially documented in the Open Group Base Specifications, Issue 7, ensuring compatibility and reliability.

### Related Utilities
- **`true`**: Returns a zero exit status, indicating success.
- **`exit`**: Used to terminate shell scripts with a specified exit status.

### Cultural Context
While not as widely discussed as other UNIX utilities, `false` is a foundational tool in scripting, emphasizing the importance of explicit error handling in automation. Its inclusion in standard UNIX distributions reflects its role in maintaining predictable behavior in shell environments.