Bashstyle is an opinionated style guide for writing maintainable Bash programs and command-line tools. It treats Bash as a practical systems glue language and focuses specifically on Bash rather than generic POSIX shell portability. Major rules include quoting variable expansions, putting executable logic inside functions, using a clear main entry point, and keeping variables local whenever possible. Scripts are encouraged to fail quickly with set -eo pipefail and to use modern constructs such as [[ ]] and $( ). The guide also covers temporary files, cleanup traps, stdout and stderr conventions, variable naming, path handling, and conditional style. ...