title: shell script variable use
body: <p>I'll get to the meat and bones:</p>
  
  <pre><code>MY_VAR=6
  until [$MY_VAR = 0]
  do
  dir/dir_$MY_VAR.log
  ps | grep "NAME_$MY_VAR.ksh"
  check some things
  if [results = ok]
  echo "program $MY_VAR sucessful"
  else
  echo "program $MY_VAR failure"
  MY_VAR = `expr $MY_VAR - 1`
  done
  </code></pre>
  
  <p>Now I am getting the following errors MY_VAR not found and [6: not found, so I'm assuming a rather noobish mistake. I feel the logic is sound enough just a simple syntax error I am making somewhere by the looks of the two errors I think it could be in the declaration.</p>