if 判断中的作用

haimming

1. 
   
2. [rockfall@~]$CONNECTION_TRACKING="1"
   
3. [rockfall@~]$if [ "$CONNECTION_TRACKING" = "1" ]; then echo 1;else echo 0;fi
   
4. 1
   
5. [rockfall@~]$CONNECTION_TRACKING="0"
   
6. [rockfall@~]$if [ "$CONNECTION_TRACKING" = "1" ]; then echo 1;else echo 0;fi
   
7. 0
   

复制代码

haimming

不明白就试试,现在的电脑还不会骗你

1. 
   
2. [rockfall@~]$CONNECTION_TRACKING="1"[rockfall@~]$if [ "$CONNECTION_TRACKING" = "0" ]; then echo 1;else echo 0;fi
   
3. 0
   
4. 
   

复制代码

haimming

$CONNECTION_TRACKING= "1"
赋值不能有空格

haimming

呵呵，看来要多猜