如何统计数字的分布区间？

jcdiy0601

1. awk '{if($2<10)a++;if($2>=10&&$2<20)b++;if($2>=20&&$2<40)c++;if($2>40)d++}END{print "<10",a;print "10-20",b;print "20-40",c;print ">40",d}' file
   

复制代码

疯子影子

#!/bin/sh

res=(0,0,0,0)

while read character number
do
if [ "$number" -lt 10 ];then
let res[0]++
elif [ "$number" -ge 10 -a "$number" -lt 20 ];then
let res[1]++
elif [ "$number" -ge 20 -a "$number" -lt 40 ];then
let res[2]++
else
let res[3]++
fi
done < /data/shell/6.txt

for((i=0;i<${#res[@]};i++))
do
if [ "$i" -eq 0 ];then
echo -n "<10 "
elif [ "$i" -eq 1 ];then
echo -n "10-20 "
elif [ "$i" -eq 2 ];then
echo -n "20-40 "
else
echo -n ">40 "
fi
echo ${res[i]}
done