Termux on my Android One Nokia 6.2 smartphone running Android 9

Install Termux from the Play Store.

Run apt update && apt upgrade to make sure that certain handy tools are available.

Execute termux-setup-storage to ensure that permission to system storage is granted. Including other convenient stuff like symlinks to different storage folders.

To copy files from the phone to a PC, just use scp. On a Mac, make sure Sharing > Remote Login is enabled:

Then execute scp <source-file> <username>@<ip-address-target-pc>:<full-path-target-folder>

References:

• Termux wiki: https://wiki.termux.com/wiki/Main_Page
• Tips: https://www.makeuseof.com/tag/use-linux-command-line-android-termux/