Feature Request: Option to show line numbers

[jpillora]

When filtering, it might be nice to know where you are inside a large file

[lestrrat]

What happens if you are doing something line tail -F /potentially/infinite/logfile' | peco?

[jpillora]

I see the end of logfile with no line numbers :(

[lestrrat]

Sorry, I meant,

"suppose we implement --show-line-numbers, and then what do you expect to happen if you do something like tail -F /potentially/infinite/logfile' | peco?"

[syohex]

FYI We can use nl command for this purpose without implementing --show-line-numbers
option. For example

% ps aux | nl -ba | peco | perl -wlne 'm{^\s+\d+\s(.*+)} and print $1'

[lestrrat]

I prefer @syohex 's approach :)

[jpillora]

@lestrrat True, though that'll always be an issue when you're just dealing with stdin. program-to-randomize-lines foo.txt | peco I think most people would know that you're not going to have correct line numbers. Anyway, I'll make a shell function with @syohex's solution.