home | O'Reilly's CD bookshelfs | FreeBSD | Linux | Cisco | Cisco Exam  


file [options ] files

Classify the named files according to the type of data they contain. file checks the magic file (usually /etc/magic ) to identify many common file types.



Check the format of the magic file (files argument is invalid with -c ).

-f list

Run file on the filenames in list .


Do not follow symbolic links.

-m file

Use file as the magic file instead of /etc/magic .

Many file types are understood. Output lists each filename, followed by a brief classification such as:

ascii text
c program text
c-shell commands
iAPX 386 executable
[nt]roff, tbl, or eqn input text
shell commands
symbolic link to ../usr/etc/arp


List all files that are deemed to be nroff /troff input:

file * | grep roff

Previous: Reference: fgrep UNIX in a Nutshell: System V Edition Next: Reference: find
Reference: fgrep Book Index Reference: find

The UNIX CD Bookshelf NavigationThe UNIX CD BookshelfUNIX Power ToolsUNIX in a NutshellLearning the vi Editorsed & awkLearning the Korn ShellLearning the UNIX Operating System