This feature runs the integrated Python script watch.py to run a specified show command periodically and display the output accordingly. In the script, CLI paging is disabled so that user input is not needed, and CLI refreshing is disabled so that the keyword “no-refresh” is not needed in auto-refreshing commands.
To run a specified show command, use the following command:
watch command {difference} {count count} {interval interval}.
The following example runs the show ports command for port 11 runs 15 times with an interval of 30 seconds:
# watch "show ports 11 statistics port-number no-refresh" count 15 interval 30
Port Link Tx Pkt Tx Byte Rx Pkt Rx Byte Rx Pkt Rx Pkt Tx Pkt Tx Pkt
State Count Count Count Count Bcast Mcast Bcast Mcast
========= ===== =========== =========== =========== =========== =========== =========== =========== ===========
11 A 206845 30061110 205326 30939540 0 163381 0 163483
========= ===== =========== =========== =========== =========== =========== =========== =========== ===========
> in Port indicates Port Display Name truncated past 8 characters
> in Count indicates value exceeds column width. Use 'wide' option or '0' to clear.
Link State: A-Active, R-Ready, NP-Port Not Present, L-Loopback
Port Link Tx Pkt Tx Byte Rx Pkt Rx Byte Rx Pkt Rx Pkt Tx Pkt Tx Pkt
State Count Count Count Count Bcast Mcast Bcast Mcast
========= ===== =========== =========== =========== =========== =========== =========== =========== ===========
11 A 206845 30061110 205327 30939662 0 163382 0 163483
========= ===== =========== =========== =========== =========== =========== =========== =========== ===========
> in Port indicates Port Display Name truncated past 8 characters
> in Count indicates value exceeds column width. Use 'wide' option or '0' to clear.
Link State: A-Active, R-Ready, NP-Port Not Present, L-Loopback
Port Link Tx Pkt Tx Byte Rx Pkt Rx Byte Rx Pkt Rx Pkt Tx Pkt Tx Pkt
State Count Count Count Count Bcast Mcast Bcast Mcast
========= ===== =========== =========== =========== =========== =========== =========== =========== ===========
11 A 206847 30061402 205328 30939832 0 163383 0 163485
========= ===== =========== =========== =========== =========== =========== =========== =========== ===========
> in Port indicates Port Display Name truncated past 8 characters
> in Count indicates value exceeds column width. Use 'wide' option or '0' to clear.
Link State: A-Active, R-Ready, NP-Port Not Present, L-Loopback