command alias
Short answer
A short keyboard shortcut for an AutoCAD command, defined in acad.pgp (e.g. L → LINE, CO → COPY).
A command alias is a short string that expands to a full AutoCAD command name when typed at the command line — L for LINE, CO for COPY, TR for TRIM. Aliases live in acad.pgp (Program Parameters file), which AutoCAD loads at startup. You can edit acad.pgp directly or use the ALIASEDIT command. Teams often standardize on a shared acad.pgp so every seat has the same shortcuts.