一种简单的方法是

top -b -n 1 -u abc | awk 'NR>7 { sum += $9; } END { print sum; }'

如果您对每个用户的CPU时间感兴趣，也可以使用acct.

If you are interested in the cpu time on a per user basis you can also use acct.

accton on
sa -m