Environment Variables¶
export
unset
Tips and Traps¶
explainshell.com is a great place for learning shell.
Bash-it/bash-it is a great community driven Bash framework.
It is suggested that you avoid writing complicated Bash scripts. IPython is a much better alternative.
Do NOT use
;to delimit paths passed to a shell command because;
Shell in Docker
Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
Configure the Shell for the RUN Command
https://docs.docker.com/engine/reference/builder/#shell
Configure the Default Shell for Terminals in Docker Containers
Just set the SHELL environment variable in …
Parse Arguments in Bash
Functions in Bash
By default, variables defined in a function are global, i.e., they are visible outside the function too.
File Name of Bash Script
Do NOT get into this messy shit if you can avoid it! Use Python script instead if you can.
If you want to reliably get the name of a Bash script, it is recommended that you run the Bash script as an executable script instead of source it in.