# Linux - `journalctl -f` to follow the system log. ## File System - `/etc/fstab` holds a list of devices mounted. - `parted` for managing partitions. - `mount` displays mounted filesystems. - `lsblk` lists all block devices, whether mounted or not. - `mkfs` to create file system (formatting) - `dd if=input_file of=output_file`, used for cloning drives, the arguments can be block device or an img file, or an iso file. - Use `-o loop -t iso9660` to mount an ISO file. - `sha256sum -c --ignore-missing sha256sum.txt` ## Networking