https://www.gentoo-zh.org/viewtopic.php?id=510 Sun, 13 Nov 2022 09:45:36 +0000 FluxBB https://www.gentoo-zh.org/viewtopic.php?pid=547#p547 逐行去掉脏数据
awk -F ',' 'BEGIN  {while(getline < "20161101") if(length($3)>=6&&length($4>=5)){{print $1","$2","substr($3,0,6)","substr($4,0,5)","$5}};close("20161101");}'

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