/bin/sh for maximum portability
POSIX sh runs everywhere (Alpine, old Ubuntu, embedded). Bash adds arrays, [[ ]], brace expansion. Use Bash when you control the environment; use POSIX for max portability.
Output
Press Run to execute your code.
POSIX sh runs everywhere (Alpine, old Ubuntu, embedded). Bash adds arrays, [[ ]], brace expansion. Use Bash when you control the environment; use POSIX for max portability.