# X::LibTmux::Command

- **Module:** LibTmux
- **Package:** LibTmux
- **Language:** Raku
- **Kind:** exception
- **Source:** https://github.com/libtmux/libtmux-raku/blob/e76160bcce6e03976d49424da15b7c31afb2c68e/lib/LibTmux/Exceptions.rakumod#L15
- **Bases:** [`X::LibTmux`](/en/raku/latest/reference/x-libtmux/), `Exception`
- **Page:** https://libtmux.org/en/raku/latest/reference/x-libtmux-command/

A child command failed; outcome states whether an effect may have occurred.

A child command failed; outcome states whether an effect may have occurred.

## Members

### Other members

- [`cause`](/en/raku/latest/reference/x-libtmux-command-cause/) (property): Underlying failure retained when a later boundary adds context.
- [`clone`](/en/raku/latest/reference/x-libtmux-command-clone/) (method): Copy error context with validated fields and independent immutable byte buffers.
- [`exitcode`](/en/raku/latest/reference/x-libtmux-command-exitcode/) (property): Observed child exit status, when a child completion is available.
- [`kind`](/en/raku/latest/reference/x-libtmux-command-kind/) (property): Failure category such as argument, spawn, exit, timeout, cancelled or cleanup.
- [`outcome`](/en/raku/latest/reference/x-libtmux-command-outcome/) (property): What is known about effects at the failure boundary.
- [`pid`](/en/raku/latest/reference/x-libtmux-command-pid/) (property): Owned client process ID, when process creation was established.
- [`reaped`](/en/raku/latest/reference/x-libtmux-command-reaped/) (property): Whether cleanup established that the owned client was joined.
- [`signal`](/en/raku/latest/reference/x-libtmux-command-signal/) (property): Observed terminating signal, when child completion is available.
- [`stderr`](/en/raku/latest/reference/x-libtmux-command-stderr/) (property): Captured stderr bytes available when the operation failed.
- [`stdout`](/en/raku/latest/reference/x-libtmux-command-stdout/) (property): Captured stdout bytes available when the operation failed.