add quiet flag

[SijanC147]

This is in relation to #138.

Unfortunately, for what it's worth, it's still not possible to "pipe" the output to another process, since the last command uses process substitution, and I couldn't figure out how to achieve this with my limited knowledge of shell, other than replacing the last line in my own fork with:

lnav <( eval "${command_to_tail}" )

but, the quiet flag does what it's suppose to, so i figured i'd make the PR anyway :)

good job on this project man, keep it up 👏

[johanhaleby]

Thank you for the PR, but what is lnav? :) Is this something that is as ubiquitously available as tail?

[SijanC147]

it is a terminal based log viewer with a bevy of features. stuff like querying logs with sql, generating historgrams, custom formats, etc... :)

[johanhaleby]

Well, if it still doesn't work with piping, why not play it safe and retain the use of tail -f?

[SijanC147]

i'm not sure but i think it's not that it doesn't work with piping because i typically pipe kubectl to it, but because the final command in kubetail uses a subshell process tail doesn't output anything to stdout, so lnav doesn't receive anything from the pipe. but regardless, the approach in my fork worked well, but obviously that's just for my own use case, so i kept it separate.

I also tried to use the buffered option, but couldn't get it to work for some reason and didn't have enough time to play around with it 😅