Linux Bash Scripting

Produce bash scripts that pass shellcheck --enable=all and shfmt -d with zero warnings.

Target: GNU Bash 4.4+ on Linux. No macOS/BSD workarounds, no Windows paths, no POSIX-only restrictions.

Script Foundation

#!/usr/bin/env bash
set -Eeuo pipefail
shopt -s inherit_errexit

readonly SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd -P)"

trap 'printf "Error at %s:%d\n" "${BASH_SOURCE[0]}" "$LINENO" >&2' ERR
trap 'rm -rf -- "${_tmpdir:-}"' EXIT