I assume we're talking about Gaia OS commands.
Through TACACS+ Accounting? Not to my knowledge.
However, the commands entered are sent to syslog, which could be centrally collected.
Aug 2 17:14:55 2018 GW xpand[5368]: admin localhost t +volatile:clish:admin:15862 t
Aug 2 17:14:55 2018 GW clish[15862]: User admin logged in with ReadWrite permission
Aug 2 17:14:58 2018 GW clish[15862]: cmd by admin: Start executing : show interface ... (cmd md5: 47fdeb5c773b9dac74c9fe311686ca76)
Aug 2 17:14:58 2018 GW clish[15862]: cmd by admin: Processing : show interface eth0 (cmd md5: 47fdeb5c773b9dac74c9fe311686ca76)
Aug 2 17:15:00 2018 GW xpand[5368]: admin localhost t -volatile:clish:admin:15862
Aug 2 17:15:00 2018 GW clish[15862]: User admin logged out from CLI shell