[Semibug] Need an example of libxo usage
Mike Wayne
semibug15 at post.wayne47.com
Mon Apr 15 10:34:34 EDT 2024
On Sat, Apr 13, 2024 at 08:48:41AM -0700, admin at bclug.ca wrote:
> Mike Wayne wrote on 2024-04-12 15:55:
>
> I think JSON should do it via `jq`.
Any idea what package jq might be in? Never heard of it.
> printf "%s last login %s from %s\n" $(lastlogin --libxo json | jq -r '.user,.login-time,.from')
> A couple things to watch for: JSON / jq won't like a key with a hyphen,
> such as login-time. I'd assume / hope that libxo would do the
> transformation required for proper JSON.
>
>
> Also, IFS might need tweaking as the date containing spaces will get
> parsed into separate printf string placeholders.
>
> Or some `sed` transforms.
Sounds like the --libxo option isn't all that functional as it appears to
need additional commands to parse the output rather than just displaying
arguments using command line options.
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