multiple spaces in bash strings.

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f42 workstation.

I'm trying to prepend a string and multiple spaces to another string.  I can't get it to work.  How do I do it?  See 3 attempts below.  I really do want multiple spaces between the startstring and the longstring.

-----

me@road-runner:~$ cat spaces1.bash
#!/bin/bash

#==============================================================================

echo Enter start string:
read startstring
echo startstring = \"${startstring}\".
echo

longstring="This is a long test string"
echo longstring = \"${longstring}\".

$longstring="${startstring}   ${longstring}"
echo longstring = \"${longstring}\".
me@road-runner:~$ ./spaces1.bash
Enter start string:
11
startstring = "11".

longstring = "This is a long test string".
./spaces1.bash: line 13: This: command not found
longstring = "This is a long test string".
me@road-runner:~$

------

me@road-runner:~$ cat spaces2.bash
#!/bin/bash

#==============================================================================

echo Enter start string:
read startstring
echo startstring = \"${startstring}\".
echo

longstring="This is a long test string"
echo longstring = \"${longstring}\".

spaces3="   "
$longstring="${startstring}${spaces3}${longstring}"
echo longstring = \"${longstring}\".
me@road-runner:~$ ./spaces2.bash
Enter start string:
22
startstring = "22".

longstring = "This is a long test string".
./spaces2.bash: line 14: This: command not found
longstring = "This is a long test string".
me@road-runner:~$

------

me@road-runner:~$ cat spaces3.bash
#!/bin/bash

#==============================================================================

echo Enter start string:
read startstring
echo startstring = \"${startstring}\".
echo

longstring="This is a long test string"
echo longstring = \"${longstring}\".

$longstring=${startstring}   ${longstring}
echo longstring = \"${longstring}\".
me@road-runner:~$ ./spaces3.bash
Enter start string:
333
startstring = "333".

longstring = "This is a long test string".
./spaces3.bash: line 13: This: command not found
longstring = "This is a long test string".
me@road-runner:~$

------


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