Show HN: Ov – feature rich terminal pager
github.com
I made a terminal pager that can be used instead of more, less, tail -f.
It has a mode that distinguishes between headers and columns.
github.com
Definitely going to give this a try.
One feature I discovered recently in less that I'm always using now is filtering: type '&' and then the thing you're looking for, and less will only show matching lines.
If you're a NixOS newbie and you don't want to wait for the PR to land, you can add it with a package override by pasting in the function body from the PR and prepending a `with` expression for the original Nixpkgs used in the override, like:
nixpkgs.config.packageOverrides = superPkgs: {
ov = with superPkgs; buildGoModule rec {
pname = "ov";
version = "0.13.0";
<...>
meta = with lib; {
description = "Feature-rich terminal-based text viewer";
homepage = "https://noborus.github.io/ov";
license = licenses.mit;
platforms = platforms.linux ++ platforms.darwin;
};
};
};
--
scrollback_pager ov```
< /dev/random ov
```
- https://linux.die.net/man/1/most (multiple files/windows at once)
- https://github.com/sharkdp/bat (uses `less` under the hood, syntax highlighting and git diffs)
- https://linux.die.net/man/1/lesskey (add parameters to `less`)
- https://github.com/ivanov/kanten (looks abandoned)
- "Just use vim" (and vim's paging is really good, so this is viable, in fact probably the most viable so far)
`less` is a great program, despite being old there aren't really many flaws. It's one of those tools that don't really need updates or improvements. But I do think there are a few features which would be nice to have (automatic ANSI coloring, tailing, syntax highlighting, support for files like sqlite and tar - which of which are in ov).
The one thing which `less` may have over `ov` (besides already being on most distros) is speed. `less` takes in really large files, or forever terminal output, and is still really fast. And I find that when I use `less` I use it with large files or terminal output often. Though I don't actually know if `ov` is any slower, it's something the dev should watch out for (I don't see "speed" mentioned in the README).
Better links:
One very useful feature for this I didn't see listed for lnav was to support adjusting for timestamps in different timezones, like maybe you have a desktop's log in local time that you're trying to reconcile with servers. (A related but less-important bonus would be to be able to specify smaller arbitrary clock drift/offsets for each log.)
You can adjust the timestamps for a file using the ":adjust-log-time" command (https://docs.lnav.org/en/latest/commands.html#adjust-log-tim...). For example, if you wanted to shift the timestamps back an hour, you can do:
:adjust-log-time -1h
If you want to do the shift programmatically, you can UPDATE the "time_offset" column of the "lnav_file" table directly (see https://docs.lnav.org/en/latest/sqltab.html#lnav-file)