Linux-cheat-sheet

Linux-cheat-sheet.md

My Linux Cheat Sheets

Create a Backup of the home partition

sudo xfsdump -l 0 -L "Backup level 0 of /home `date`" -M Full  - /home | lzop > /media/oli/Seagate_4TB/Backup/vostro/xfsdump/home-xfsdump-`date +%Y-%m-%d`.lzo

ISO date in bash

DATE=`date +%Y-%m-%d`

check open ports

netstat -tulpn

show firewall rules

iptables -nL

create sudo user

adduser max
usermod -aG sudo max

check installed packages

dpkg -l

check if a package is installed

dpkg -l | grep postfix