Skip to content
type into “Command Prompt” py to pull up the python version on your computerCoding Basic examples
Make sure it’s downloaded to your computer and then flash it to MicroSD on balenaEtcher
Open the file with root permissions
Files in /boot usually require sudo:
(Replace config.txt with your actual file name.)Navigate to where you want to insert the new lineUse the arrow keys or j (down) / k (up) to move the cursor.Enter insert modePress o → opens a new line below the current line and enters insert mode.Press O (capital o) → opens a new line above the current line and enters insert mode.Alternatively, press i to insert text at the cursor position.Type your new code or configuration line
Example:
Exit insert modePress Esc.Save and exitType:
and press Enter.
(w = write, q = quit)
Cancel changes without saving:
Press Esc and type:
View line numbers while editing:
Append to the end of the file quickly:
Then type your new line.
Press i → insert mode (text will be inserted before the cursor)Or press a → append mode (text will be inserted after the cursor)Or press o → open a new line below and start typing
Just press Shift + letter (e.g., Shift + A → A)Caps Lock also works, but Shift is more common for single capitals.
! @ # $ % ^ & * ( ) _ + { } | : " < > ?For backslash \ or pipe |, just type them normally.If your shell interprets some characters (like ~ or \), in vi they will be inserted as-is — no escaping needed.
Press Esc to return to command mode.Type:
and press Enter to save and quit.
/boot is a critical system directory — changing files here can make your system unbootable.If you’re just adding a .txt file for notes, that’s fine.Never modify bootloader configs or kernel files unless you know exactly what you’re doing.
AllowAllow
Python & Linux
HelloWorld.py
1.8 KB
Instructions for Installing BeagleBone Software
Start Here:
README.md
428 B
Specific Board:
BeagleBone Black
Reading Software
Software Image: (Latest)
E325: ATTENTION - Error Message Resolve
Putty
BBB via SSH Password: ozone67
debian@BeagleBone:~$ cat/etc/dogtag
-bash: cat/etc/dogtag: No such file or directory
BeagleBoard.org Debian Trixie Base Image 2025-10-29
python -m venv .CES-env
UTF-8
12/02/25
12/03/2025
ls -a = list everything
:wq = write quit out of vi file
:q = quit (with prompt of changes)
:q! = quit without saving
Here’s a clear, step-by-step guide to adding lines of code to a .txt file in the /boot folder using vi (or vim) on Linux, such as when editing config.txt or cmdline.txt on a Raspberry Pi.
Steps
sudo vi /boot/config.txt
dtoverlay=vc4-kms-v3d
:wq
Extra Tips
:q!
:set number
G
o
✅ Example: Adding a GPU memory setting to /boot/config.txt
sudo vi /boot/config.txt
Move to the end, press o, type:
gpu_mem=256
Press Esc, then :wq.
If you want, I can give you a one-command way to append a line to a /boot .txt file without opening vi at all. Would you like me to include that?
Got it — you want to edit a .txt file in the boot folder using vi and insert capital letters and symbols into it.
Here’s a safe, step-by-step guide for doing this in Linux.
1. Open the file in vi
If the file is in /boot (which is a system folder), you’ll likely need root privileges:
sudo vi /boot/filename.txt
Replace filename.txt with your actual file name.
2. Enter Insert Mode
When vi opens, it starts in command mode.
To type text (including capital letters and symbols):
3. Typing Capital Letters
4. Typing Symbols
Most symbols can be typed directly:
5. Saving and Exiting
When done:
:wq
If you want to quit without saving:
:q!
6. Special Notes for /boot
✅ Example session:
sudo vi /boot/notes.txt
# Press i
# Type: SYSTEM UPDATE @ 2025-12-04
# Press Esc
# Type :wq and press Enter
If you want, I can give you a vi quick reference table for all commands you’ll need to insert capital letters, symbols, and special characters efficiently.
Do you want me to prepare that?
Why is the "cmdline" still commented?
Load content from 1drv.ms?
Loading external content may reveal information to 3rd parties. Learn more
Load content from python-seabreeze.readthedocs.io?
Loading external content may reveal information to 3rd parties. Learn more
Want to print your doc?
This is not the way.
This is not the way.
Try clicking the ··· in the right corner or using a keyboard shortcut (
CtrlP
) instead.