LINUX SYSTEM INFORMATION

LOG IN TO ROOT USER:

Syntax: $su – (or) $su
$password: enter your root password.
[root-@local host]#
SHOW SYSTEM ARCHITECTURE:
Syntax: [root-@local host]#arch

SHOW THE TIME TABLE OF 2012:
Syntax:[root-@local host]#cal 2012

SHOW INFORMATION CPU INFO:
Syntax:[root-@local host]#cat /proc/cpuinfo

SHOW INTERRUPTS:
Syntax: [root-@local host]#cat /proc/interrupts

VERIFY MEMORY USE:
Syntax: [root-@local host]#cat /proc/meminfo

SHOW FILE(S) SWAP:
Syntax: [root-@local host]#cat /proc/swaps

SHOW VERSION OF THE KERNAL:
Syntax: [root-@local host]#cat /proc/version

SHOW NETWORK ADAPTERS AND STATISTICS:
Syntax: [root-@local host]#cat /proc/net/dev

SHOW MOUNTED FILE SYSTEM(S):
Syntax: [root-@local host]#cat /proc/mounts

SAVE DATE CHANGES ON BIOS:
Syntax: [root-@local host]#clock -w

SHOW SYSTEM DATE:
Syntax: [root-@local host]#date

SET DATE AND TIME:
Syntax: [root-@local host]#date 041217002012.00

SHOW HARDWARE SYSTEM COMPONENTS:
Syntax: [root-@local host]#dmidecode -q

DISPLAYS THE CHARACTERISTICS OF A HARD DISK:
Syntax: [root-@local host]#hdparm -i /dev/hda

PERFORM TEST READING ON A HARD DISK:
Syntax: [root-@local host]#hdparm -tT /dev/sda

DISPLAY PCI DEVICES:
Syntax: [root-@local host]#lspci -tv

SHOW USB DEVICES:
Syntax: [root-@local host]#lsusb -tv

SHOW ARCHITECTURE OF MACHINE:
Syntax: [root-@local host]#uname -m

SHOW USED KERNAL VERSION:
Syntax: [root-@local host]#uname -r