View System Informations
View Kernel information
uname -rView File System information
df -hdf -iView File System Attributes
blkidView Memory information
free -mcat /proc/meminfoView CPU information
cat /proc/cpuinfoView Load information
uptime
# output result mean:
# Col 1 : The current time
# Col 2 : how long the system has been running
# Col 3 : how many users are currently logged on
# Col 4-6 : the system load averages for the past 1, 5, and 15 minutes.cat /proc/loadavgView current device mount list information
cat /proc/mountsView current system interrupt information
cat /proc/interruptsView service name by port number
lsof -i :PORTnetstat -lntup | grep PORTLast updated