Where Files Live on Linux
On Windows you have C:\, D:\, Program Files, and Users. Linux organizes things differently. Here's the map.
The big difference from Windows
On Windows, each drive gets its own letter (C:\, D:\, etc.). On Linux, there's one single folder tree starting from / (called "root" -- it's just the top-level folder, like the trunk of a tree). Everything branches off from there -- your files, your apps, USB drives, everything.
Think of it like an apartment building. On Windows, each drive is a separate building. On Linux, it's all one building with different floors and rooms.
/home/yourname) and install apps through the software center. This page is here when you're curious about what's behind the scenes.
The main folders
Here's what the top-level folders are for, explained in plain English:
That's a lot of folders, but in daily use you'll mostly interact with just a few. Let's go through the important ones.
Your home folder (/home)
This is your space. It's like the Users\YourName folder on Windows or the ~ folder on Mac. Your documents, downloads, music, pictures, and settings all live here.
/home/yourname/
├── Documents/
├── Downloads/
├── Music/
├── Pictures/
├── Videos/
├── Desktop/
├── .config/ (hidden - app settings)
├── .local/ (hidden - user-installed stuff)
└── .bashrc (hidden - terminal settings).config) are hidden by default. They're usually settings files that apps create. You can see them in your file manager by pressing Ctrl+H, or in the terminal with ls -a.
Some handy shortcuts:
| Shortcut | What it means | Windows equivalent |
|---|---|---|
~ | Your home folder | C:\Users\YourName |
. | The folder you're currently in | Same |
.. | The folder one level up | Same |
/ | The very top of the file tree | C:\ |
Where programs live (/usr and /opt)
When you install an app through your software center or package manager, it goes into /usr. This is like "Program Files" on Windows, but you don't normally browse it directly -- the package manager handles everything.
/usr/
├── bin/ Programs you can run (Firefox, Python, Git, etc.)
├── lib/ Support files those programs need
├── share/ Icons, themes, help files
└── local/ Stuff you installed manually (not from the app store)Some apps (usually bigger commercial ones like Chrome or Discord) install into /opt instead. Think of it as a separate "apps" folder.
How is this different from Windows?
On Windows, each app makes its own folder in Program Files and manages its own files. On Linux, apps share a common structure -- all their executables go in one place, all their libraries go in another. This makes the system tidier, but it also means you don't see a "Firefox" folder you can just delete. Instead, you uninstall through the package manager.
System settings (/etc)
/etc (pronounced "et-see") is where all the system-wide settings live. Think of it as the Linux version of the Windows Registry, except instead of one giant confusing database, it's just a bunch of text files you can read and edit.
Some files you might encounter:
| File | What it does |
|---|---|
/etc/hostname | Your computer's name on the network |
/etc/hosts | Manually map website names to addresses (like a local DNS) |
/etc/fstab | Which drives to connect automatically at startup |
/etc/passwd | List of user accounts (don't worry, passwords aren't stored here in plain text) |
Logs and changing data (/var)
This is where the system keeps data that changes over time -- logs of what happened, cached downloads, email, and so on.
The most useful subfolder is /var/log, which contains log files. If something goes wrong, this is where you (or someone helping you) would look for clues:
# See recent system messages
cat /var/log/syslog # Ubuntu/Mint/Debian
cat /var/log/messages # Fedora/RHEL
# Or use the built-in log viewer (works on most distros)
journalctl -b # Show logs from this bootUSB drives and external storage (/media)
When you plug in a USB drive, external hard drive, or SD card, it shows up under /media/yourname/. Your file manager handles this automatically -- you'll see it pop up in the sidebar just like on Windows or Mac.
If you need to manually connect a drive (less common), you'd use the /mnt folder.
Temporary files (/tmp)
Programs create temporary files here while they're working. Everything in /tmp gets deleted when you restart your computer. You don't need to manage this -- it takes care of itself.
The "under the hood" folders
These folders are more advanced. You won't need them for everyday use, but it's good to know they exist.
/dev - Your hardware represented as files
Linux has an unusual design: it represents hardware devices as if they were files. Your hard drive is a "file" at /dev/sda. Your webcam, USB ports, even random number generators -- they're all "files" here.
You'll rarely interact with this directly, but you might see these paths mentioned in guides:
/dev/sda-- Your first hard drive/dev/sda1-- The first section (partition) of that drive/dev/null-- A "black hole" file that discards anything written to it
/proc and /sys - Live system information
These aren't real folders on your hard drive. They're created on the fly by the operating system to show you what's happening right now -- kind of like Task Manager on Windows, but as files.
# How much memory you have
cat /proc/meminfo
# What CPU you have
cat /proc/cpuinfo
# How long your computer has been on
cat /proc/uptime/boot - Startup files
Contains the files your computer needs to start up, including the Linux core (called the "kernel" -- it's the part that talks to your hardware). You should never need to edit anything here manually. Your package manager handles updates to these files.
/lib - Support files for programs
These are shared code libraries that programs need to run -- similar to .dll files on Windows. You don't manage these yourself; the package manager installs them when a program needs them.
File permissions (who can access what)
Every file on Linux has rules about who can read it, change it, or run it. There are three levels:
- Owner -- The user who created the file (usually you)
- Group -- A set of users who share access
- Everyone else
And three types of permission:
- Read (r) -- Can look at the contents
- Write (w) -- Can change or delete it
- Execute (x) -- Can run it as a program
How to read permission codes
When you list files with details (ls -l), you'll see something like:
-rw-r--r-- 1 you you 2847 Jan 15 12:00 notes.txtThat -rw-r--r-- part breaks down like this:
rw--- Owner can read and write (but not execute)r---- Group can only readr---- Everyone else can only read
Changing permissions
You can change who has access to a file with chmod:
# Make a script runnable
chmod +x my-script.sh
# Make a file private (only you can read/write)
chmod 600 private-file.txt
# Make a folder and everything in it accessible to your group
chmod -R 775 shared-folder/Quick comparison: Windows vs Linux
| Windows | Linux | What it's for |
|---|---|---|
| C:\Users\You | /home/you | Your personal files |
| C:\Program Files | /usr/bin and /opt | Installed programs |
| C:\Windows | /usr/lib and /boot | Operating system files |
| Registry | /etc (text files) | System settings |
| D:\ (second drive) | /media/you/DriveName | Extra storage |
| Recycle Bin | ~/.local/share/Trash | Deleted files |
| %TEMP% | /tmp | Temporary files |
| Event Viewer | /var/log | System logs |