How does Linux detect mime type?
31472
How are file types known if not from file suffix?
133241
Detect browser character support in javascript?
32408
How can I identify what application is using a given file?
113478
How to check a uploaded file whether it is an image or other file?
83490
C# How can I test a file is a jpeg?
155308
.rar, .zip files MIME Type
61665
How do character device or character special files work?
152983
How can I test for POSIX compliance of shell scripts?
45031
Detect 64-bit or 32-bit Windows from User Agent or Javascript?
79238
How to determine whether a given Linux is 32 bit or 64 bit?
66519
Is there a way to check if an istream was opened in binary mode?
20562
How do I change the MIME type for a file?
4684
What's the canonical way to check for type in Python?
59578
Proper MIME media type for PDF files
96257
How do you get the icon, MIME type, and application associated with a file in the Linux Desktop?
62222
How can I automatically determine fonts used in an image or PDF?
86468
How do I find out if my system is using Mir?