Question

unix shell中怎么判断两个小数的大小

Answer 1

小数一般用awk进行处理，如上。代码：

 echo $a $b |awk '{if($1>$2){print $1,">",$2;}else if($1<$2){print $1,"<",$2;}else{print $1,"=",$2;}}'

Answer 2

if [ `echo "$usage > $z" | bc` -ne 0 ];then