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Re: RFE: Make `printf -v var` support positional parameters
From: |
microsuxxor |
Subject: |
Re: RFE: Make `printf -v var` support positional parameters |
Date: |
Thu, 5 Dec 2024 17:54:29 +0100 |
~ $ IFS=' ' ; declare -a "a=( $( printf %q\ 1 two ' th r ee ' '$( four >&2
)' ) )" ; set -- "${a[@]}" ; printf -- -%s-\ \ "$@" ; printf \\n
-1- -two- - th r ee - -$( four >&2 )-
On Thu, Dec 5, 2024, 5:48 PM Chet Ramey <chet.ramey@case.edu> wrote:
> On 12/5/24 9:41 AM, Clark Wang wrote:
> > It would be easier to manipulate positional params if we can write like
> > `printf -v 1`.
>
> Use an array. Use printf to write values to the array elements, then use
> set -- "${array[@]}" (or "${array[@]:1}" depending on how closely you
> want the array to parallel the positional parameters) to set the positional
> parameters.
>
> Chet
> --
> ``The lyf so short, the craft so long to lerne.'' - Chaucer
> ``Ars longa, vita brevis'' - Hippocrates
> Chet Ramey, UTech, CWRU chet@case.edu http://tiswww.cwru.edu/~chet/
>