LINUX TERMINAL COMMANDS
LINUX TERMINAL COMMANDS 1 – SYSTEM INFORMATION # Display Linux system information uname -a # Display kernel release information uname -r # Show which version of redhat installed cat /etc/redhat-release # Show how long the system has been running + load uptime # Show system host name hostname # Display the IP addresses of the host hostname -I # Show system reboot history last reboot # Show the current date and time date # Show this month's calendar cal # Display who is online w # Who you are logged in as whoami 2 – HARDWARE INFORMATION # Display messages in kernel ring buffer dmesg # Display CPU information cat /proc/cpuinfo # Display memory information cat /proc/meminfo # Display free and used memory ( -h for human readable, -m for MB, -g for GB.) free -h # Display PCI devices lspci -tv # Display USB devices lsusb -tv # Display DMI/SMBIOS (hardware info) from the BIOS dmidecode # Show info about disk sda hdparm -i /dev/sda # Perform a read spe...