JUNOS Commands
EX3400 Switch
Copy file between Master and Backup (copy file from FPC0 to FPC1)
>file copy fpc0:/var/tmp/junos21.3r.tgz fpc1:/var/tmp/junos21.3r.tgz
Upgrade virtual chassis
>request system software add /var/tmp/junos21.3r.tgz
Run the request system storage cleanup command. This will remove any unnecessary files but keep everything under /root intact:
root@juniper> request system storage cleanup