Shell Programming and Scripting

$1=file1
$2=file2
$3=file3
$4=file4

while read folder
set - $( echo ${folder} )
  i=1
  while (($i <= $#))
          do
            eval echo var$i=\$$i

done<file.txt

$1=file1
$1=file2
$1=file3

$ cat Args
while read LINE
do
  set -- $@ "$LINE"
done < file.txt

echo var1 is $1
echo var2 is $2
echo var3 is $3
echo var4 is $4

$ ./Args
var1 is file1
var2 is file2
var3 is file3
var4 is file 4

var1=file1
var2=file2
var3=file4

var1=file1
var1=file2
var1=file3

set - $( echo ${folder} )
  i=1
  while (($i <= $#))
          do
            eval echo\"\ var$i=\$$i\"

done<file.txt