docs/docs/4.4/cmds/command.html
command [OPTIONS] [COMMANDNAME [ARG ...]]
command forces the shell to execute the program COMMANDNAME and ignore any functions or builtins with the same name.
In command foo, command is a keyword.
The following options are available:
-a or --all
Prints all COMMAND found in PATH, in the order found.
-q or --query
Return 0 if any of the given commands could be found, 127 otherwise. Don’t print anything. For compatibility, this is also --quiet (deprecated).
-s or --search (or -v )
Prints the external command that would be executed, or prints nothing if no file with the specified name could be found in PATH.
-h or --help
Displays help about using this command.
command ls executes the ls program, even if an ls function also exists.
command -s ls prints the path to the ls program.
command -q git; and command git log runs git log only if git exists.
command -sq git and command -q git and command -vq git return true (0) if a git command could be found and don’t print anything.