# cmd_entry.usage

- **Language:** C
- **Kind:** attribute
- **Source:** https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/tmux.h#L1943
- **Page:** https://libtmux.org/en/tmux/3.7c/reference/c-struct-cmd_entry-usage/

```c
const char * usage;
```

## Referenced by

- [`cmd_list_single_command`](/en/tmux/3.7c/reference/c-function-cmd-list-commands-c-cmd_list_single_command/) (function)
- [`cmd_parse`](/en/tmux/3.7c/reference/c-function-cmd_parse/) (function)