title: permission denied in running script
body: <p>I am running a script but there is an unusual warning:
  This is what happened in my console</p>
  
  <pre><code>#whoami
  root
  #ls -l test.sh
  -rwxr-xr-x. 1 root root 1894 Feb  2 01:58 test.sh*
  #./test.sh
  -bash: ./test.sh: Permission denied
  </code></pre>
  
  <p>Edit:
  my script:</p>
  
  <pre><code>#!/bin/bash
  while read pass port user ip file; do
    echo "startt------------------------------------" $ip
    ping $ip -c 4
    if [ $? -eq 0 ]; then
      echo $ip ok...
    else
      echo $ip failed...
    fi
    echo "finish------------------------------------" $ip
  done &lt;&lt;____HERE
  pass  22  root  1.1.1.1  test.txt
  ____HERE
  </code></pre>
  
  <p>any idea?
  thank you</p>