Fine Free File Command

This is the home page for the open source implementation of the file(1) command that ships with every free operating system (OpenBSD, Linux, NetBSD, FreeBSD, etc.
Homepage:	http://www.darwinsys.com/file/
Function:	File Format Identification

Description

This is the home page for the open source implementation of the file(1) command that ships with every free operating system (OpenBSD, Linux, NetBSD, FreeBSD, etc.) and has been ported to most systems where people use free software (including OS/2, DOS, MS Windows, etc.).

User Experiences

• [2019-11-16] Linux and Unix file command tutorial with examples

Development Activity

All development activity is visible on GitHub: https://github.com/file/file/commits

Release Feed

Below the last 3 release feeds:

2026-02-27 14:58:13

[tag:github.com,2008:Repository/1303130/FILE5_47 FILE5_47]

by zoulasc

2024-11-27 15:37:46

[tag:github.com,2008:Repository/1303130/FILE5_46 FILE5_46]

by zoulasc

2023-07-27 19:46:14

[tag:github.com,2008:Repository/1303130/FILE5_45 FILE5_45]

by zoulasc

Activity Feed

Below the last 5 commits:

2026-04-20 14:53:18

[tag:github.com,2008:Grit::Commit/1632db8145973e942987aa49355559e259473ea7 Add Coff for OMNI VM (Pali)]

by zoulasc https://github.com/zoulasc

2026-04-19 20:19:20

[tag:github.com,2008:Grit::Commit/2866af2e51beb40afe35d2ff5e765991ac459237 fix typo]

by zoulasc https://github.com/zoulasc

2026-04-19 20:17:41

[tag:github.com,2008:Grit::Commit/d3ea09d17d373bc156a2286d969bce1950e2bc8c Regognize mips R4000 compiled with MSVC (Pali)]

by zoulasc https://github.com/zoulasc

2026-04-19 19:58:28

[tag:github.com,2008:Grit::Commit/df26cccb959b653c892f41561011ab36d88251b5 mention new types in log.]

by zoulasc https://github.com/zoulasc

2026-04-19 19:57:35

[tag:github.com,2008:Grit::Commit/554b77bff451ace1923d561a7a278e2720781e86 Use beguid]

by zoulasc https://github.com/zoulasc

Informative references

• syntax of the File magic numbers