title: Bash script command not found error in while loop
body: <p>I have problem and cant still handle with it. :(
  Here is my code </p>
  
  <pre><code>declare -i disk_usage_rate=$(df -h /appdata/SCT_CDR | cut -d '%' -f 1 | awk 'NR==2{print $5}')
  
  while ["$disk_usage_rate" -gt 80]
  do
  ...
  ...
  done
  </code></pre>
  
  <p>I get the disk usage rate from df -h command. But in while loop I get the followig error. Btw it is bash script.</p>
  
  <blockquote>
    <p>bash: [84: command not found</p>
  </blockquote>
  
  <p>I tried so many things but I didnt solve yet. </p>