/dev/full
Template:Short description Script error: No such module "Unsubst". In Linux, FreeBSD, and NetBSD, Page Template:Mono/styles.css has no content./dev/full, or the always-full device,[1][2] is a special file that always returns the error code Page Template:Mono/styles.css has no content.ENOSPC (meaning "No space left on device") on writing, and provides any number of zero bytes to a process that reads from it (similar to Page Template:Mono/styles.css has no content./dev/zero).[3] This device is usually used when testing the behavior of a program when it encounters a "disk full" error.
$ echo "Hello, World" > /dev/full
bash: echo: write error: No space left on device
History
Support for the always-full device in Linux is documented as early as 2007.[2] Native support was added to FreeBSD in the 11.0 release in 2016,[4] which had previously supported it through an optional module called lindev.[4][5] The full device appeared in NetBSD 8.[6]
Relationship to other special files
| Device | Read behavior[3] | Write behavior[3] | Use case |
|---|---|---|---|
| /dev/full | Returns zeros | Returns ENOSPC | Testing disk full errors |
| /dev/zero | Returns zeros | Discards data | Memory initialization |
| /dev/null | Returns EOF | Discards data | Suppressing output |
See also
- Page Template:Mono/styles.css has no content./dev
- Page Template:Mono/styles.css has no content./dev/null
- Page Template:Mono/styles.css has no content./dev/zero
- Fault injection
- Page Template:Mono/styles.css has no content./dev/mordor in 9front
References
Page Template:Reflist/styles.css has no content.
- ↑ Lua error in package.lua at line 80: module 'Module:Citation/CS1/Utilities' not found.
- ↑ a b Lua error in package.lua at line 80: module 'Module:Citation/CS1/Utilities' not found.
- ↑ a b c Lua error in package.lua at line 80: module 'Module:Citation/CS1/Utilities' not found.
- ↑ a b Lua error in package.lua at line 80: module 'Module:Citation/CS1/Utilities' not found.
- ↑ Lua error in package.lua at line 80: module 'Module:Citation/CS1/Utilities' not found.
- ↑ Lua error in package.lua at line 80: module 'Module:Citation/CS1/Utilities' not found.
Script error: No such module "Check for unknown parameters".
