Command output from modem is:
TxNum Band: 3 
[10-30]
[50-80]
[100-200]
RxNum Band: 3 {100-120}
[120-300]
[400-600]
[800-1000]
Others: 2000

##</code><code>##

Please help me in writing regular expression so that i can extract the TxBands and RxBands in the following format
Txbands: [10-30] [50-80] [100-200]
Rxbands:[120-300] [400-600] [800-1000]