Ben Chuanlong Du's Blog

It is never too late to learn.

Environment Variables and Secure Path for sudo

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

sudo -E command_to_run

sudo $(which command_to_run)

sudo env "PATH=$PATH" nvim

The "correct" way is to update the secure path using the commanding sudo visudo.

For more discussions, please refer to …

Proxy for sudo

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

You can setup proxy in a terminal by export environment variables http_proxy and `https_proxy'.

export http_proxy='proxy_server:port'
export https_proxy='proxy_server:port'

However, you might find the exported environment variables are …

Run Virtual Machines on Linux

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

While VirtualBox is a popular cross-platform tool for running virtual machines, KVM is a superior solution for Linux as KVM is a type-1 hypervisor which runs directly on the hardware via …

Tips on Toolbx

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

I personally devoted effort on Docker images which makes it easy to develop in Docker containers.

  • Create a user with same uid/gid as the user on the host on the …

COSMIC Is a Rock Solid Desktop Environment for Linux

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Auto Login

/etc/greetd/cosmic-greeter.toml

[terminal]
vt = "1"

[general]
service = "login"

[default_session]
command = "cosmic-greeter-start"
user = "cosmic-greeter"

[initial_session]
command = "start-cosmic"
user = "username"

https://github.com/pop-os/cosmic-greeter/issues/80