Check Top Processes sorted by RAM or CPU Usage in Linux

root@ubuntu:~# ps -eo pid,ppid,cmd,%mem,%cpu --sort=-%mem | head

  PID  PPID CMD                         %MEM %CPU
 1254     1 /usr/lib/jvm/java-8-openjdk  1.7  0.8
 1096     1 /usr/bin/docker daemon -H f  0.4  0.1
 1355  1096 containerd -l /var/run/dock  0.1  0.0
  954     1 /usr/lib/snapd/snapd         0.1  0.0
 1353  1098 sshd: marek [priv]           0.0  0.0
 1645  1098 sshd: marek [priv]           0.0  0.0
  914     1 /usr/lib/accountsservice/ac  0.0  0.0
 1285  1282 /usr/sbin/apache2 -k start   0.0  0.0
 1286  1282 /usr/sbin/apache2 -k start   0.0  0.0