Introduction to graudit (tutorial)

An introduction to using graudit for code review. graudit is an open source code review tool capable of finding vulnerabilities in many languages. You can find graudit at https://github.com/wireghoul/graudit

More videos on code review:
* Source code audit speed run: https://www.youtube.com/watch?v=hpYjjj1UAXs
* How to do Code Review - The Offensive Security Way: https://www.youtube.com/watch?v=fb-t3WWHsMQ
* The Absolute AppSec Secure Code Review Framework by Seth Law: https://www.youtube.com/watch?v=Kepd1HsoE8o

Commands used in the tutorial:
```
git clone https://github.com/wireghoul/graudit
echo 'PATH="$HOME/graudit:${PATH:+:${PATH}}"; export PATH;' ﹥﹥ ~/.bashrc
. ~/.bashrc
graudit -v
graudit -h
graudit -d php ~/graudit/t/exec.php
echo 'GRARGS="-b -L"; export GRARGS' ﹥﹥ ~/.bashrc
. ~/.bashrc
echo $GRARGS
graudit -d php ~/graudit/t/exec.php
vim /home/demo/graudit/exec.php +9
graudit -l
git clone https://github.com/phpipam/phpipam
graudit -d flatline phpipam | more
graudit -d fruit phpipam | more
graudit phpipam | more
graudit -d php phpipam | more
cd phpipam
~/graudit/misc/gitlog
cd ..
wget https://www.exploit-db.com/apps/deefccc64a14195a4ebba7f0a16d3262-superlinks-v1.4-2.tgz
tar zxvf deefccc64a14195a4ebba7f0a16d3262-superlinks-v1.4-2.tgz
~/graudit/misc/phptaint.sh superlinks/superlinks.php
graudit -d php superlinks/superlinks.php | more
highlight -O ansi superlinks/superlinks.php | more
```