Re: Feature request: --progress option to wc(1)

[Pádraig Brady]

On 15/11/2024 15:40, Joakim Lindblad wrote:
> I'm often using 'wc' for stuff that takes a long time, e.g. 'tar -tf big.tar | 
> wc -l' to count the
> files in an archive.
> Here I am lacking some intermediate feedback from the process.
>
> Does a "--progress" version of 'wc' exist? I am envisioning a continuous count 
> with a simple
> line-wise overwrite a'la '\r'.
>
> I fail to find the option, and I don't find the feature request rejected
> https://www.gnu.org/software/coreutils/rejected_requests.html#wc
>
> I could potentially volunteer to implement it (but am happy not to).

Yes this does seem like useful functionality,
however it's already implemented in `pv --line-mode`,
so I don't see an advantage to implementing in wc.

For example:

while :; do seq 10; sleep 1; done | pv --line-mode > /dev/null

thanks,
Pádraig