Linux frequency command

linux_command.txt

list content of installed package

dpkg -L package-name

attach a file to first unused loop device

losetup -f file 

detach loop

losetup -d /dev/loopX


copy a tree with source directory "/usr/*" to distance directory "/mnt/usr"

cd /usr
find -print0 | cpio --null -pd /mnt/usr


change netcard default name

cd /etc/udev/rules.d
vi 70-persistent-net.rules

# for archlinux
# start a systemd-networkd with this command(available at once)
systemctl start systemd-networkd

# enable a systemd-networkd serice (every startup linux box)
systemctl enable systemd-networkd.service

# resize tmpfs
 mount -o remount,size=4G,noatime /tmp