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Finish up fzf post 

Signed-off-by: Harsh Shandilya <me@msfjarvis.dev>
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Harsh Shandilya 2020-08-11 03:56:40 +05:30
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content/posts/tools-of-the-trade-fzf.md
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@ -11,12 +11,48 @@ title = "Tools of the trade: fzf"
In this second post, let's talk about [fzf](https://github.com/junegunn/fzf).
# What is fzf?
## What is fzf?
In its simplest form, `fzf` is a **f**u**zz**y **f**inder. It lets you search through files, folders, any line-based text using a simple fuzzy and/or regex backed system.
Usage can be very straightforward: just type `fzf`.
On-demand, `fzf` can also be super fancy.
{{< asciinema zlWZPYualoELZxruMRIln9eZw >}}
## Why do I use it?
Becaue `fzf` is a search tool, you can use it to find files and folders. My most common use-case for it is a simple bash function that goes like this:
```bash
fao () {
local ARG;
ARG="${1}";
if [ -z "${ARG}" ]; then
nano "$(fzf)";
else
nano "$(fzf -q"${ARG}")";
fi
}
```
It starts up a fzf session and then opens up the selected file in `nano`.
{{< asciinema o0oYpW84PCAYr1QimLKksxRvW >}}
By default, `fzf` is a full-screen tool and takes up the entire height of your terminal. I've restricted it to 40% of that, as it looks a bit nicer IMO. You can make more such changes by setting the `FZF_DEFAULT_OPTS` environment variable as described in the [layout section](https://github.com/junegunn/fzf#layout) of the fzf docs.
But that's not all! You can get _real_ fancy with `fzf`.
For example, check out the output of `fzf --preview 'bat --style=numbers --color=always --line-range :500 {}'` [here](https://asciinema.org/a/WFFx2negPw5iXbCZe1YlAZeqj) (a bit too wide to embed here :()
> `bat` is a `cat(1)` clone with syntax highlighting and other nifty features, and also a tool I use on the daily. We'll probably be covering it soon :)
You can also bind arbitrary keys to actions with relative ease.
{{< asciinema sso3dAYuqI7TH0aRcYRPBRmTv >}}
The syntax as evident, is pretty simple
```<key-shortcut>:execute(<command>)<+abort>```
The `+abort` there is optional, and signals `fzf` that we want to exit after running the command. Detailed instructions area available in the `fzf` [README](https://github.com/junegunn/fzf#readme).
And that's it from me. Tweet at me at [@MSF_Jarvis](https://twitter.com/MSF_Jarvis) with any fancy `fzf` recipes you come up with!