# Sorting lines in Vim

Amongst Vim’s many commands, there’s the humble yet powerful `:sort`

. As you’d expect, it takes a selection or a range and sorts it. By default, that sort is numerical (``through`

9`), then alphabetical (`

A`through`

Z`followed by`

a`through`

z`).

All that to say that running a generic `:sort`

on the characters to the left in the following example would result in them being reordered to how you see them on the right.

```
Original Sorted
a => 2
B => B
c => a
2 => b
b => c
```

That’s ever so close to what I’d like. I’d rather it ignore the case of the letters when sorting alphabetically however; something that can easily be done by passing `i`

into the command. `:sort i`

results in the following.

```
Original Sorted
a => 2
B => a
c => B
2 => b
b => c
```

99% of the time, `:sort i`

is precisely what I’m after. As it’s functionality I use multiple times a day, I have it remapped. `<leader>s`

works well for me.

```
xnoremap <leader>s :sort i<cr>
```

Now for the lesser used, yet still occasionally useful sort options.

`:sort! i`

(no space between the command and the `!`

) will sort the selection in the reverse order:

```
Original Sorted
a => c
B => b
c => B
2 => a
b => 2
```

`:sort u`

will remove any duplicate lines:

```
Original Sorted
a => 2
B => B
b => a
c => b
2 => c
b =>
```

And `:sort n`

will sort lines based on the first decimal number in the line (use `f`

for a float). In it’s most basic use case (the example below), it will look at the entire value of the number, rather than just the first digit in the number. Otherwise, `55`

would be sorted before `9`

as `5`

precedes `9`

.

```
Original Sorted
22 => 1
1 => 5
42 => 8
5 => 22
8 => 42
80 => 80
```

It gets better though, as running `:sort n`

on lines that contain numbers will result in them being ordered based on the first number in the line, no matter where in the line that number is.

```
Original Sorted
The 5 quick brown foxes => jumped over the 2 lazy dogs
jumped over the 2 lazy dogs => at 4 o'clock in the afternoon
at 4 o'clock in the afternoon => The 5 quick brown foxes
```

That concludes coverage of the most useful `:sort`

commands, but not all of them. `:help sort`

has explanations of the rest, should you be curious.