Editing Changing the login shell for a user

===Changing the login shell for a user===
If you experience an error like:
<pre>su: cannot run /sbin/nologin: No such file or directory</pre>
when you try to do
<pre>su some_user</pre>
you have to change the login shell for that user.

'''Notice:''' You should be sure about using <code>vi</code> properly before doing this.

This is done with the following line:
<pre>vi /etc/passwd</pre>
You'll see a line like this:
<pre>some_user:x:1025:100:Descriptive text:/nonexist:/sbin/nologin</pre>
Change that line to:
<pre>some_user:x:1025:100:Descriptive text:/nonexist:/bin/ash</pre>
Save the file, and you're done.
You're now able to do
<pre>su some_user</pre>

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