WHY

gawk "$2>5.8 || $2<5.7" a.txt > b.txt
复制代码

sed -r "/^\S+\s+5\.(7[0-9]*|80*)\b/d" a.txt > b.txt
复制代码

WHY

回复 3# keshun

@echo off
set "a=5.7"
set "b=5.8"
gawk "BEGIN{a=%a%>%b%?%a%:%b%; b=%a%>%b%?%b%:%a%}; $2>a || $2<b" a.txt > b.txt
pause
复制代码