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package main

import (
	"fmt"
)

func main() {
	sl := []string{"zero", "one", "two", "one", "zero", "three", "five", "four", "five"}

	duplicateIndex := []int{}

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cat access.log | awk '{print $1}' | sort -n | uniq -c | sort -nr | head -20

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1. Modify volume on AWS

2. Type the following command to list our block devices:

lsblk

3. Type the following command:

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```bash
echo "alias python=python3" >> ~/.bash_aliases

source ~/.bash_aliases
```

```bash
sudo apt install python3-pip
```

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```sh
hostnamectl set-hostname newName
```

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Uninstall old versions

```
sudo apt-get remove docker docker-engine docker.io containerd runc
```

```bash
sudo apt-get update

sudo apt-get install \

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Create ~/.ssh/authorized_keys on user's home folder

```sh
# Copy user public key

cd /home/username

mkdir -p .ssh
mkdir ~/.ssh/authorized_keys

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### Step 1 - nginx-proxy

Start **nginx-proxy** with the three additional volumes declared:

```shell
$ docker run --detach \
    --name nginx-proxy \
    --publish 80:80 \
    --publish 443:443 \
    --volume /etc/nginx/certs \

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Linux add new user

```bash
sudo adduser username
```

Add the new user to `sudo` group

```
sudo usermod -aG sudo username

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Open your terminal and type as

```sh
lsof -i :8000
```

For example, with port 8000 (python3 -m http.server):

```sh
$ lsof -i :8000