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Date: Sat, 16 May 2020 20:59:26 +0000
From: Daniel Shahaf <d.s@daniel.shahaf.name>
To: Han Boetes <hboetes@gmail.com>
Cc: zsh-workers@zsh.org
Subject: Re: zsh watch function
Message-ID: <20200516205926.45d04fc5@tarpaulin.shahaf.local2>
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Han Boetes wrote on Sat, 16 May 2020 16:31 +0200:
> And then I saw the padding light, here an improved version:
>=20
> watch () {
>     IN=3D2

The code isn't WARN_CREATE_GLOBAL-clean.

>     CM=3D"$*"
>     LEFT=3D"$(printf 'Every %.1f: %s' $IN $CM)"
=E2=8B=AE
>         printf "$LEFT%${PAD}s\n" "$HN $(date)"

$LEFT may contain unescaped percent signs from the input.

>         eval "$CM"
>         sleep $IN
>         clear
>     done
> } =20

For context to others, note that watch(1) on FreeBSD does something
entirely different to what watch(1) does on Linux.