command-not-found.com
Calculate SHA224 cryptographic checksums. More information: <https://www.gnu.org/software/coreutils/manual/html_node/sha2-utilities.html>.
Interactive spell checker. More information: <http://aspell.net/>.
Run jobs in foreground. More information: <https://manned.org/fg>.
A tool to check Python code against PEP 8 style conventions. More information: <https://pycodestyle.readthedocs.io>.
Tool to interactively inspect HTTP requests and responses. More information: <https://github.com/asciimoo/wuzz>.
Command forces the shell to execute the program and ignore any functions, builtins and aliases with the same name. More information: <https://manned.org/command>.
Python package manager. Some subcommands such as pip install have their own usage documentation. More information: <https://pip.pypa.io>.
Switch between multiple versions of Python easily. See also: asdf. More information: <https://github.com/pyenv/pyenv>.