# Bash Tips ## Metadata **Status**:: #x **Zettel**:: #zettel/literature **Created**:: [[2023-06-06]] **Tags**:: #command-line ## Synopsis ⚡ Shebang ``` #!/usr/bin/env bash set -e set -u [ -n "${DEBUG:-}" ] && set -x || true ``` ⚡ Read array ``` readarray -t FILES < <(ls) ``` ⚡ If string like ``` [[ "$x" == *"foo"* ]] ```