☆ Yσɠƚԋσʂ ☆@lemmy.ml to Programmer Humor@lemmy.mlEnglish · 10 months agoNew File Formatlemmy.mlimagemessage-square73fedilinkarrow-up1681arrow-down115
arrow-up1666arrow-down1imageNew File Formatlemmy.ml☆ Yσɠƚԋσʂ ☆@lemmy.ml to Programmer Humor@lemmy.mlEnglish · 10 months agomessage-square73fedilink
minus-squaredan@upvote.aulinkfedilinkEnglisharrow-up2·10 months agoLinux mostly doesn’t use file extensions… It relies on “magic bytes” in the file. Same with the web in general - it relies purely on MIME type (e.g. text/html for HTML files) and doesn’t care about extensions at all.
minus-squarefibojoly@sh.itjust.workslinkfedilinkarrow-up1·10 months ago“Magic bytes”? We just called them headers, back in my day (even if sometimes they are at the end of the file)
minus-squaredan@upvote.aulinkfedilinkarrow-up3·10 months agoThe library that handles it is literally called “libmagic”. I’d guess the phrase “magic bytes” comes from the programming concept of a magic number?
minus-squarefibojoly@sh.itjust.workslinkfedilinkarrow-up2·10 months agoI did not know about that one! It makes sense though, because a lot of headers would start with, well yeah, “magic numbers”. Makes sense.
Linux mostly doesn’t use file extensions… It relies on “magic bytes” in the file.
Same with the web in general - it relies purely on MIME type (e.g.
text/htmlfor HTML files) and doesn’t care about extensions at all.“Magic bytes”? We just called them headers, back in my day (even if sometimes they are at the end of the file)
The library that handles it is literally called “libmagic”. I’d guess the phrase “magic bytes” comes from the programming concept of a magic number?
I did not know about that one! It makes sense though, because a lot of headers would start with, well yeah, “magic numbers”. Makes sense.