请教for in语句

lee_vs

#!/bin/bash
for abc in "a b" "c d" "e f"
do
echo "hello!$abc"
if [ $abc -eq "c d" ]
then
echo "abcdef"
fi
done
这样写为什么if语句会是错的呢？实在不明白，请教了。

yongjian

-eq is used for comparing numbers. string uses '=, !=, etc...'