basic-utils-linux.sh

#/bin/bash

#get more infor for PID

ps -Flww -p $PID

#show users on Linux

cat /etc/passwd | awk -F: '{print $1}'

#show services

systemctl list-units --type=service

#run bin on background

/bin &>/dev/null &

#remove old kernels
#sudo apt-get purge $( dpkg --list | grep -P -o "linux-image-\d\S+" | grep -v $(uname -r | grep -P -o ".+\d") )
sudo apt --purge autoremove

#show kernels

sudo dpkg --list | egrep -i --color 'linux-image|linux-headers'

#show ports used by process

sudo netstat -tulpn | grep LISTEN

#or by a specific port

sudo lsof -i:$PORT

#Missing PUB_KEY

sudo apt-key adv --keyserver hkp://pool.sks-keyservers.net:80 --recv-keys PUB_KEY

##Last WebMinRepo
#sudo apt-key adv --keyserver hkp://pool.sks-keyservers.net:80 --recv-keys 2D223B918916F2A2

#Create User and add to sudoers
# - Create user
sudo adduser $NEWUSER
# - Add to sudoers group
usermod -aG sudo $NEWUSER


#show status of service

sudo systemctl status $SERVICE.service && journalctl -xe

#check fat 32 sdcard USB
sudo dosfsck -w -r -l -a -v -t /dev/sdX0

#list folder by size
sudo du -h / | sort -rh | head -10