lib_init.sh

A file for some initial Bash Scripting best practices. It applies the following settings:

• errexit: Abort on nonzero exit status
• nounset: Abort on unbound variable
• pipefail: Don’t hide errors within pipes
• xtrace: Show expanded commands if DEBUG is set to 2. Set to 1 for more verbose output.

Usage:

MY_PATH="$(realpath "${BASH_SOURCE[0]}")"
SCRIPT_DIR="$(dirname "${MY_PATH}")"
readonly MY_PATH
readonly SCRIPT_DIR
readonly LIB_BASH_DIR="${SCRIPT_DIR}/lib_bash"
source "${LIB_BASH_DIR}/lib_init.sh"

Constants

• DEBUG: Provide option to trigger debug output with different verbosity levels. Call with DEBUG=2 <command>.sh <file> to enable verbose debug output