#!/bin/bash #read
read -p "输入要比较的两个数字:" z x[ $z -eq $x ] && echo "$z = $x"
[ $z -gt $x ] && echo "$z > $x"
[ $z -lt $x ] && echo "$z < $x"
#赋值
n=10
b=15[ $n -eq $b ] && echo "$n = $b"
[ $n -gt $b ] && echo "$n > $b"
[ $n -lt $b ] && echo "$n < $b"
#脚本传参
[ $1 -eq $2 ] && echo "$1 = $2"
[ $1 -gt $2 ] && echo "$1 > $2"
[ $1 -lt $2 ] && echo "$1 < $2"
#i=0
#while [ $i -lt 4 ]
#do
# ping -c -W 1 223.5.5.5 &>/dev/null
# [ $? -eq 0 ] && echo "ping is ok"
# let i++
#done
#echo $i
#for i in li guo shuai l am 18
#do#[ ${#i} -lt 3 ] && echo $i
#done