while

  while (. 28.5)   :

while -
do


done

 -    true,   -
  ,   do  done.  -
     -.   
-   false,     
 done.

. 28.5. -  while

      number -
 .    test ,   10 
number.    test   -it,    -
 .       - ( -
), -eq (), -gt (), - (  ), -It ()  -1 (
 ).     test   = ()  !=
( ).  test   ,  0 (true),   number
 10.   test  true,    
 do  done:

$ cat count

#!/bin/bash
numbered
while [ "$number" -It 10 ]
do

echo -n "$number"
number=$( expr $number + 1)
done
echo

882  VI. 