tldr/pages/common/file.md

424 B

file

Determine file type.

  • Give a description of the type of the specified file. Works fine for files with no file extension:

file {{filename}}

  • Look inside a zipped file and determine the file type(s) inside:

file -z {{foo.zip}}

  • Allow file to work with special or device files:

file -s {{filename}}

  • Don't stop at first file type match; keep going until the end of the file:

file -k {{filename}}