p \
arrayobj = <<-EOS.scan(/^#(?!#)(?:(?!```)[^#]|```.*?```)*/m).flatten

 
 
# bash LAN
 
\```
nmap -sn 192.168.3.*
\```
 
# node.js npm
 
`sudo apt update && sudo apt install nodejs npm -y`
 
# something title
 
something content
 
# bash log
 
\```
tail -f
# or
# tail -f -n 50
\```


EOS