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Enable SSH

1. Locate the partion of the newly flashed Raspberry Pi OS.
2. Create a new empty file named ssh with no extension in the boot partition.

or

echo '' > ssh

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arr = ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j"]

chunk_three = chunk(arr, 3)
assert chunk_three == [["a", "b", "c"], ["d", "e", "f"], ["g", "h", "i"], ["j"]]

chunk_default = chunk(arr)
assert chunk_default == [["a", "b", "c", "d"], ["e", "f", "g", "h"], ["i", "j"]]

chunk_max = chunk(arr, 1000)
assert chunk_max == [['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j']]

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Export a WSL instance

wsl --export <distribution name> <export file name>

e.g.

wsl --export Ubuntu-22.04 D:\wsl-backup\Ubuntu.22.04.tar

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Forward port from host to WSL

In PowerShell, run:

netsh interface portproxy add v4tov4 listenport=<host post> listenaddress=0.0.0.0 connectport=<wsl port> connectaddress=<wsl IP address>

e.g. forward port 8080 to port 8080

netsh interface portproxy add v4tov4 listenport=8080 listenaddress=0.0.0.0 connectport=8080 connectaddress=172.30.144.20

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Bulk edit photos in Photoprism

Tested to work with builds: -

• ✅ 231011-63f708417
• ✅ 230923-e59851350
• ✅ 230719-73fa7bbe8

Use this workaround until Photoprism implemented bulk-edit feature.

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All about WSL2

Docker in WSL2 (without Docker Desktop)

🔗 https://nickjanetakis.com/blog/install-docker-in-wsl-2-without-docker-desktop

Installing Google Chrome

1. Change directories into the temp folder: cd /tmp
2. Use wget to download it: sudo wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
3. Get the current stable version: sudo dpkg -i google-chrome-stable_current_amd64.deb
4. Fix the package: sudo apt install --fix-broken -y

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Force source file to be LF on Windows

Follow the instructions below to force all files to be checked out as LF, especially in Windows.

1. Create .gitattributes file in the root directory of the project, if one does not exist.
2. Add the following line to the file

   * text=auto eol=lf
   

3. Run the following command to remove all Git caches (mind the trailing ., it indicates current path)

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Emoji

sudo apt install fonts-noto-color-emoji

🔗 Reference: https://gist.github.com/arafathusayn/3d384adfbbdfe0b6a12868e9046e9a23

Chinese fonts

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Context

If you want to host a DNS server in a Linux environment (e.g. Ubuntu or raspbian), port 53/udp might be occupied by one of the services below. Use. ss or lsof to check the running service.

Stop systemd-resolved

1. Edit the conf file

   sudo vim /etc/systemd/resolved.conf

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Linux command cheatsheet

• Update editor alternative
• Run docker with sudo without password (for docker group)
• User / group management
  • Add user
  • Add group

• Add user to group