bash - shell script - looping line by line

i have simple script:

$ cat $$.sh #!/bin/sh -x  var="one 2 3 four"  in $var ;     echo $i done $

run output:

$ sh -x $$.sh + var='one 2 3 four' + in '$var' + echo 1 one + in '$var' + echo 2 two + in '$var' + echo 3 three + in '$var' + echo 4 four $

seems it's looking space , need line break instead

if you're reading multiple lines, line-by-line, while read loop common way this:

var="one 2 3 four"  while ifs='' read -r ;     echo "$i" done <<< "$var"

this produces:

 1 2 3 4

note in example, while loop taking input $var variable using bash here-string redirection. redirection file or pipe.

Brazzel