Check out the operating system :

cat /proc/version   # Kernel version

cat /etc/issue   # Release version

head -n 1 /etc/issue

uname -a

lsb_release -a       #  All version information

Check the process :

ps aux

pmap -d 5647            #  Check the memory according to the process

View tasks :

jobs

cmd &   # Let the process run in the background

fg %n #  Let the process run in the background n( task number ) Come to the front desk

bg %n #  Let the process n Go backstage

 kill %n  #  Kill job

see CPU Information :

top    # top -u root View by user

vmstat 1  # CPU And memory usage

 cat /proc/cpuinfo   # CPU Information

 lscpu

cat /proc/stat # CPU utilization

 cat /proc/loadavg       # CPU Average load

Look at the memory :

free # Company KB

cat /proc/meminfo

Check the disk :

df -h

Check network utilization :

cat /proc/net/dev

View hardware information :

dmidecode

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