Mikrotik

[admin@MikroTik] > :global a {x=1; y=2}
[admin@MikroTik] > :set ($a->"x") 5 
[admin@MikroTik] > :environment print 
a={x=5; y=2}


/interface bridge port {:put [get [find interface=ether2] ]}
.id=*7;.nextid=*8;auto-isolate=false;bpdu-guard=false;bridge=bridge-agp;broadcast-flood=true;debug-info= prio 0x8000 num  
...

# by id
/interface bridge port {:put [get *7 ]}
[admin@MikroTik] /interface bridge port> /interface bridge port {:put [get *7 ]}
.id=*7;.nextid=*8;auto-isolate=false;bpdu-guard=false;bridge=bridge-agp;broadcast-flood=true;debug-info= prio 0x8000 num 2
....

print all key values of config
[admin@MikroTik] /interface bridge port> /interface bridge port {:foreach k,v in=[get *7 ] do={:put ("$k=$v")}}
.id=*7
.nextid=*8
auto-isolate=false
bpdu-guard=false
bridge=bridge-agp
broadcast-flood=true
debug-info= prio 0x8000 num 2
                              role:Dis (0) learn 0 forward 0 infoIs Dis edge 0 sendRSTP 1
                                                                                          proposing 0 agreed 0 agree 0 synced 1 isolate 0 newInfo 0
                                                                                                                                                    migration:CHK_RSTP tc:INACTIVE
                                                                                                                                                                                   ptimes: Msg:1668247142 Max: 0 FD: 80 HT: 2004064648
                                                                                                                                                                                                                                       pprio: RBI: 8000:0000
00000000 RPC: 0 BI: 8000:000000000000 tP: 0x0 rP: 0x0
                                                      dtimes: Msg:0 Max: 5120 FD: 3840 HT: 512
                                                                                               dprio: RBI: 8000:000000000000 RPC: 0 BI: 8000:000000000000 tP: 0x0 rP: 0x0

disabled=false