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read
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read reads a full line (default) or up to the full line

The default IFS is " +",  one or more space (includes tab)

$ cat Kitty.txt
Hello,my name is Kitty.
What is your name?
My name is	Ditty       #this is a tab
1, 2,     3                 #this is a series of space


$ cat doit
#!/bin/bash
  
while read line  
do
 echo $line
done < $1

$ ./doit cat.txt
Hello,my name is Kitty. 
What is your name?
My name is Ditty         #note all extra blanks have been deleted
1, 2, 3


$ cat doit
#!/bin/bash
  
while read p1 p2
do
 echo $p2
done < $1

$ ./doit cat.txt
name is Kitty.
is your name?
name is Ditty
2, 3

You can change IFS to "," to read csv files and so on.