是否可以使用 linux 比较同一行 in.txt 文件的 2 个内容？

Question

Let's say I have the following content in text file

input.txt
aaa bbb
ccc ddd

I would like to compare user input with the content in text file.

Let's say user is prompted to enter 2 strings, if first string matches the content in text file (let's say aaa, which is the first content of line 1) , how should I modify my code to make the program to compare the second string that user entered with the second content (bbb) on the same line?

echo "First input: "; read input1
echo "Second input: "; read input2
if [ "$input1" = $(< input.txt) ]; then
 # content matches
else
 # content doesn't match
fi

Answer 1

Read the first line from input.txt :

read -r shouldbe_input1 shouldbe_input2 < <(head -n1 input.txt)

Then just compare:

if [ "$input1" = "$shouldbe_input1" ] && [ "$input2" = "$shouldbe_input2" ]; then
       echo yay
else
       echo not yay

fi