title: start-dfs.sh: command not found
body: <p>I have installed hadoop 2.7.0. on Ubuntu 14.04. But the code <code>start-dfs.sh</code> is not working. when I run this code It returns <code>start-dfs.sh: command not found</code>. The <code>start-dfs.sh</code>, <code>start-all.sh</code> , <code>stop-dfs.sh</code> and <code>stop-all.sh</code> are in the <strong>sbin</strong> directory. I have installed and set the paths of <strong>java</strong> and <strong>hadoop</strong> correctly. The codes <code>hadoop version</code> and <code>ssh localhost</code> also working. what might be the problem?</p>