请问这段shell什么地方不对

gaowudi

#!/bin/bash
echo Please, enter your firstname and lastname
read FN LN
echo $FN
echo $LN

if [  "$FN"="$LN" ];
then
  echo First is same to Last!
else
  echo different!
fi


为什么我输入
aaa bbb 回车

答案是  First is same to Last!

什么地方不对啊

kevein2

我想只要把if[“$FN"="$LN"]后面的那个引号去掉就可以了

loosy929

Hi, 1 && 2
1. Remove the semicolon at the end of "if" line or move the "then" after it
2. Put spaces around all your operators. I've highlighted the mandatory spaces with the word 'SPACE' - replace 'SPACE' with an actual space; otherwise, it won't work:
if SPACE [ SPACE "$1" SPACE = SPACE "$2" SPACE ]

chongling

if [ "$FN" = "$LN" ]