Add instalation instruction for Ubuntu 20.04

README.md

@@ -53,6 +53,21 @@ curl -L "$(curl -s https://api.github.com/repos/accurics/terrascan/releases/late
 python3.7 -m pip install -U checkov
 ```
 
+##### Ubuntu 20.04
+
+```bash
+sudo apt update
+sudo apt install -y gawk unzip software-properties-common
+sudo apt install -y python3 python3-pip
+pip3 install pre-commit
+curl -L "$(curl -s https://api.github.com/repos/terraform-docs/terraform-docs/releases/latest | grep -o -E "https://.+?-linux-amd64.tar.gz")" > terraform-docs.tgz && tar xzf terraform-docs.tgz && chmod +x terraform-docs && sudo mv terraform-docs /usr/bin/
+curl -L "$(curl -s https://api.github.com/repos/terraform-linters/tflint/releases/latest | grep -o -E "https://.+?_linux_amd64.zip")" > tflint.zip && unzip tflint.zip && rm tflint.zip && sudo mv tflint /usr/bin/
+curl -L "$(curl -s https://api.github.com/repos/tfsec/tfsec/releases/latest | grep -o -E "https://.+?tfsec-linux-amd64")" > tfsec && chmod +x tfsec && sudo mv tfsec /usr/bin/
+curl -L "$(curl -s https://api.github.com/repos/accurics/terrascan/releases/latest | grep -o -E "https://.+?_Linux_x86_64.tar.gz")" > terrascan.tar.gz && tar -xf terrascan.tar.gz terrascan && rm terrascan.tar.gz && sudo mv terrascan /usr/bin/
+pip3 install -U checkov
+```
+
+
 ### 2. Install the pre-commit hook globally
 
 Note: not needed if you use the Docker image