Start every script with the same skeleton: strict error mode (errexit, nounset, pipefail), an IFS reset, and a main() function. Catches silent failures that have lost engineers weeks of debugging.
Bash
#!/usr/bin/env bash
set -euo pipefail # exit on error, on unset var, on pipe failure
IFS=$'\n\t' # safer field splitting (no spaces)
# Optional: better stack traces on error
trap 'echo "Error on line $LINENO" >&2' ERR
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
main() {
local arg="${1:-default}"
echo "Hello from $SCRIPT_DIR with arg=$arg"
}
main "$@"Save your own code snippets
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