set

Toggle shell options or set the values of positional parameters. More information: https://manned.org/set.1posix.

• Display the names and values of shell variables:

set

• Export newly initialized variables to child processes:

set -a

• Write formatted messages to stderr when jobs finish:

set -b

• Write and edit text in the command line with vi-like keybindings (e.g. yy):

set -o {{vi}}

• Exit the shell when (some) commands fail:

set -e