shell中的算术运算
2019-03-07 本文已影响0人
临渊如峙
#!/bin/bash
num1=2
num2=3
#result=$(expr $num1 + $num2)
#result=`expr $num1 + $num2`
#advise
result=$[$num1+$num2]
echo "${num1} + ${num2} = ${result}"
#!/bin/bash
num1=2
num2=3
#result=$(expr $num1 + $num2)
#result=`expr $num1 + $num2`
#advise
result=$[$num1+$num2]
echo "${num1} + ${num2} = ${result}"