Tagi: cheat sheet


Search files containing string

grep -rnw ./ -e "string"

Totally override destination with source

rsync -avh --delete (--dry-run) /path/to/source/ /path/to/destination/

Find services that uses specific file

#Quick way, process id list
fuser /path/to/file

#Versatile way, more info list
lsof /path/to/file

What files does specific process id uses

lsof -p 12345 

What files ... Read more


I have to do with linux firewall iptables quite rarely, that's why I never remember commands I need. I'm going to list them here as they will come on my way.

List rules with line numbers:

iptables -L --line-numbers

Deny all acces from IP, in case of DDOS or Auth-attack:

iptables -A INPUT -s -j DROP

Remove rule by line number:

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