Bash (sh) Scripts

• Use shellcheck to lint

Bash Template

Use the following options for safer bash scripts:

set -Eeuo pipefail

Explanation:

set -o errtrace      # Functions, substitutions & sub-shells inherit traps
set -o errexit       # Stops script if any command fail
set -o nounset       # Error when using unset variables
set -o pipefail      # Error when a command in a pipeline fails

The xtrace option is also useful for debugging:

set -x
set -o xtrace        # Print each executed command