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 …

Absolute or Relative Path for Executables

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

When you call shell commands in your code, a nature question to ask is whether you should the absolute or a relative path (command). Both ways have their advantages and disadvantages …

Spark Issue: Cannot Create a Path from An Empty String

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

Issue

java.lang.IllegalArgumentException: Can not create a Path from an empty string

Possible Causes

The error you are seeing could be from number of things:

  1. parameters , check for ${param} in …