Added fmt post.

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+---
+title: "fmt"
+date: 2020-10-26T02:32:23Z
+draft: false
+tags: [blog, gnu, fmt]
+---
+
+Everybody loves [Markdown][md], it's pretty cool to get html from a text
+file, there are tons of programs that understands is and display it with
+nice CSS.
+I personally like to have my markdown files readable from a terminal.
+Let's say 80 char per line, let's say it's easier on my eyes.
+
+There's also some studies that says the average human being can focus
+on a maximum of 50 to 60 characters, 75 at max.
+
+When writing I started to take a look at the current position of the
+cursor in the line, manually breaking the row up to the next line if it
+gets too long, but I'm not a machine and it's pretty annoying to manually
+rearrange words when the paragraph changes.
+
+Like every boring task someone figured out a way to automate this tedious
+and frankly pointless activity.
+
+There's a program called [fmt], it's part of [GNU coreutils][coreutils].
+
+It's just brilliant.
+
+Just write the file with lines as long as you like, save it and run
+something like:
+
+    fmt -s file.md > file.md.formatted
+    delete file.md
+    mv file.md.formatted file.md
+
+Now you got your file formatted and nice to read.
+
+The `-s` option is the short version of `--split-only`, which is pretty
+self explanatory and the man page says:
+
+   Split lines only. Do not join short lines to form longer ones.
+   This prevents sample lines of code, and other such “formatted”
+   text from being unduly combined.
+
+Exactly what I wanted.
+
+Take a look at it if you need to format some text in general too, you
+probably already have it installed as part of [coreutils].
+
+[md]: https://daringfireball.net/projects/markdown/
+[fmt]:https://www.gnu.org/software/coreutils/manual/html_node/fmt-invocation.html
+[coreutils]: https://www.gnu.org/software/coreutils/