Solved

shell script

Posted on 2013-06-04
10
266 Views
Last Modified: 2013-06-22
[oracle@mac Desktop]$ ./top.sh
bash: ./top.sh: Permission denied
0
Comment
Question by:walkerdba
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
  • 2
  • +2
10 Comments
 
LVL 35

Expert Comment

by:johnsone
ID: 39219707
You don't have execute permission on top.sh.  You would need to change the permission with the chmod command.
0
 
LVL 7

Expert Comment

by:Robert Saylor
ID: 39219709
do:
sudo sh top.sh

Open in new window


Then enter in the root password.
0
 
LVL 77

Expert Comment

by:slightwv (䄆 Netminder)
ID: 39219718
As johnsone pointed out... change the permissions:
chmod 750 top.sh

The alternative is force execution:
. ./top.sh
0
Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 35

Accepted Solution

by:
johnsone earned 500 total points
ID: 39219760
. ./top.sh does not force execution.  That runs the commands in the current process (shell)  and does not fork a new process.  If your current shell is different than the shell that top.sh expects to run then errors could occur.

Depending on what you are doing in your script, this could also have unintended consequences in the original process as well.  In my opinion, only scripts that set environment variables should be run this way.
0
 
LVL 35

Expert Comment

by:YZlat
ID: 39219891
try

chmod 0744 top.sh

Open in new window


or

chmod go+rx top.sh

Open in new window

0
 
LVL 77

Expert Comment

by:slightwv (䄆 Netminder)
ID: 39219896
Maybe force was a poor choice of words.  I meant that it would execute a script that did not necessarily have execute permission on it.

I do agree with your other comments.

>>chmod 0744 top.sh

I would not give World execute on any script, ever.
0
 
LVL 7

Expert Comment

by:Robert Saylor
ID: 39219897
The issue is the user does not have access to sh. The user would need to be added to the same group that sh has.

root@linux [~]# ls -lha /bin/sh
lrwxrwxrwx 1 root root 4 Sep 14  2011 /bin/sh -> bash*

Open in new window


The fix should be to execute chmod 755 /bin/sh so sh will have group execute.
0
 
LVL 77

Expert Comment

by:slightwv (䄆 Netminder)
ID: 39219901
>>The issue is the user does not have access to sh.

I think I have to disagree.  What are you basing this on?
0
 
LVL 7

Expert Comment

by:Robert Saylor
ID: 39219924
sorry, yes you were correct. I just simulated it on my server.

mine@**** [~]# ./test.sh
-bash: ./test.sh: Permission denied
mine@**** [~]# sh test.sh
test
mine@**** [~]# chmod 755 test.sh
mine@**** [~]# ./test.sh
test
mine@**** [~]#
0
 

Author Closing Comment

by:walkerdba
ID: 39267695
yes
0

Featured Post

Salesforce Made Easy to Use

On-screen guidance at the moment of need enables you & your employees to focus on the core, you can now boost your adoption rates swiftly and simply with one easy tool.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Fine Tune your automatic Updates for Ubuntu / Debian
In the first part of this tutorial we will cover the prerequisites for installing SQL Server vNext on Linux.
This video explains what a user managed backup is and shows how to take one, providing a couple of simple example scripts.
This demo shows you how to set up the containerized NetScaler CPX with NetScaler Management and Analytics System in a non-routable Mesos/Marathon environment for use with Micro-Services applications.

734 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question