0 Size Files and How Metadata is Stored

In this video I explain how files can have a size of 0 bytes and how the metadata of the file is stored.

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[Calajese]

Really digging the "How X works" videos

[Pariatech]

It's easy! The metadata is just stored on an NSA server. The OS just query it your MAC address and your personal information. I though it was common knowledge smh.

[inxendere]

quickly becoming one of my fav channels ngl. absolutely digging how u just post whatever u feel like

[lawrencedoliveiro]

2:31 “touch” is the standard command-line tool for fiddling file timestamps.

[embodyingocean]

your videos are so interesting, I love them

[Ozzymand]

Man every time i think about something tech related and how does it work you make a video about it after, you're awesome bro!

[ammardayoub]

I'm in the "more than beginner less than expert" category, thanks for flexing on me

[mr.osamabingaming]

I don't know much about metadata so this is very helpful!

[dancinghost]

Wow I was actually wondering about this

[konstantinrebrov]

Thank you for this lecture. I will watch it in addition to the Computerphile to understand the concept.

[slomosapien]

Great video. I am interested to know what keyboard you are using. The sound of it makes me think it's nice to type on

[Wolfickle]

Wow, awesome! I just searched for this yesterday!!! I wanted to know if I could make a bunch of folders to organise all the related PDF's rather than just put all of them in a single folder.

[magnusanderson]

Very interesting! I thought that all this information was stored in the directory above it (which would also explain why write permission on a folder lets you delete write-protected files within that directory) since ls always lists folders as being 4K in size and I was always a bit confused about what all that data was. I had never even heard of an inode before

[lawrencedoliveiro]

“Make a sentence with “metadata”.”
“I never metadata I didn’t like.”

[ArchiWorldRuS]

In windows file properties there are 2 file sizes. One is "real", that is size of file content and the other is "size on disk" that is bigger than "real" size and I guess it's with all metadata?

[iamlegion]

Did you just explain that a SHA hash is same for two files within a 16byte range ? Cool.. didn't know that..

[marioschroers]

Data always takes space. A zero-byte file is technically an empty file with no information in it; however, it will occupy at least one inode on modern file systems, as well as at least one cluster with the defined byte size. I guess 😀

[NicholasHenkey]

In mother Russia, we also make hash out of files

[marcello]

thanks key take-aways for me.. hash only includes content.. i thought at least the filename takes into account.. and also pretty good explanation of inodes in ext

[laharlk]

Ntfs stores file below 1024bytes on its alocation table, so it generates no "fragments".
Found this out while making a program that would read files on an hdd "in order of cluster position" to maximize the read speed on spining media.