[SOLVED] tty-status keybinding successful, but key only rings the bell and otherwise acts as a no-op

metaed · 08-11-2022, 05:34 PM

Slackware 15.0
stock GNU bash 5.1.16(1)-release

There is a readline keybinding function "tty-status" shown in bind -p that I can bind a key to but does not work. For example if .inputrc has:

Code:

Control-t: tty-status

then bind -p has this line in the output:

Code:

"\C-t": tty-status

What I'm expecting a C-t to do is show load average and other basic stats. Here's sample output:

Code:

load: 0.61 cmd: bash 10561 running 0.00u 0.00s

This particular example came from an article written maybe 12 years ago. So I wonder if either the feature has been deprecated since then, or maybe just not turned on in Slackware 15.0 using compile-time options?

metaed · 08-11-2022, 05:58 PM

I should have dug deeper before posting. tty-status is implemented in many UNIX operating systems, but not Linux. It's a kernel-level feature, and in fact there exists a proposed implementation by Walt Drummond that was committed to the Linux codebase just this year. So possibly this will surface in a future kernel release.