摘要:
awk的高级部分以前没看,就先从awk开始吧,后面再重看sed随机函数 rand ,srand[root@x1 ~]# echo a|awk 'BEGIN{srand(PROCINFO["pid"])} {printf "%.0f\n",rand()*11}'0[root@x1 ~]# echo a|awk 'BEGIN{srand(PROCINFO["pid"])} {printf "%.0f\n",rand()*11}'2[root@x1 ~]# echo a|awk ' 阅读全文