使用sed替换一行内多个括号内的值

1. 括号在同一行

# cat test2
good morning (good afternoon) (good evening) (good
good) (good morning)

# cat sed2.len
s/([^)]*)/AAA/g

# sed -f sed2.len test2
good morning AAA AAA (good
good) AAA

2. 括号跨行

 # cat sed3.len
s/([^)]*)/AAA/g
/(.*/{
        N
        s/([^)]*)/AAA/g
        P
        D
}

# sed -f sed3.len test2
good morning AAA AAA AAA AAA