exec - replace the shell with a command, or apply redirections to the current shell.
exec [command [argument ...]]
exec is a POSIX special builtin provided by Rush. Replace the shell with a command, or apply redirections to the current shell.
This page summarizes the builtin in Rush documentation. POSIX is the normative reference for detailed portable behavior.
See the POSIX definition for command-specific status rules. Usage errors generally return a non-zero status.
rush-builtins(7), POSIX Shell Command Language.