Linux sed 怎么将两条sed命令结合为一条sed命令就可以搞定的

sed -i "/app_pay/{ns/server 192.168.80.1/#server 192.168.80.1/gns/#server 192.168.80.2/server 192.168.80.2/g}" /aa.conf

exec("awk '{print substr($1,9)}' $this->tmppath/mac.0.log* >>$this->tmppath/mac.0.log") &&

exec("awk '{sum+=$1}END{print sum}' $this->tmppath/mac.0.log >>mac.txt")

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