Re: A defer command as a bash loadable builtin

25 Haziran 2026 Per=C5=9Fembe tarihinde L=C3=A9a Gris <[email protected]=
t> yazd=C4=B1:

> Le 25/06/2026 =C3=A0 00:36, Gregory Heytings =C3=A9crivait=E2=80=AF:
>
>> Is this better than
>>
>> trap_append () { trap "$(printf "%s\n$1" "$(trap -P "$2")")" "$2"; }
>> trap_prepend () { trap "$(printf "$1\n%s" "$(trap -P "$2")")" "$2"; }
>>
>
> While effective, these functions rely on subshells for serialization and
> re-parsing, introducing unnecessary overhead and reduced readability due =
to
> the density required for quoting and string manipulation.
>

I believe you can avoid subshells using no-fork command substitutions here.
But I recall there was a feature request on this list for a `defer'
command, so maybe there's an audience for this... Anyway, thanks for
sharing it with us


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