Useful Linux commands:
Linux command for seeing harddrive I/O in real time:
dstat -tdD total,sda,sdb,sdc,md1 60
SSH to a server and forward back X11 commands:
ssh -X -Y *hostname*
Stop and start Gnome as needed:
service gdm stop
service gdm start
Disable Gnome from auto-start:
systemctl set-default multi-user.target
systemctl isolate multi-user.target
To re-enable:
systemctl isolate graphical.target
systemctl set-default graphical.target #it’ll setup the gdm boot startup
startx
Show size breakdown for individual directories:
du –summarize –human-readable *