Solved

windows batch set null?

Posted on 2010-11-09
8
660 Views
Last Modified: 2012-05-10
I want to execute a mysqldump command with the password set to a null value
using the attached code.

It will run interactively, putting in a carriage return for the password,
but I can't get the batch file to work.

How can I fix this?
@ECHO OFF
CLS
ECHO.

set pass=

C:\wamp\bin\mysql\mysql5.1.36\bin\mysqldump -u user -p %pass%  test > dump.sql

ECHO.
ECHO Finished.

Open in new window

0
Comment
Question by:pillmill
[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
8 Comments
 
LVL 31

Expert Comment

by:Frosty555
ID: 34096406
Omit the -p parameter entirely and it should connect to the database without a password (provided the user account is setup that way in mysql)
0
 

Author Comment

by:pillmill
ID: 34096456
Thanks. If the -p parameter is omitted, the following error occurs:

"Using password: NO, Access denied"

It will execute correctly when run interactively, with a carriage return for password.
0
 
LVL 4

Expert Comment

by:Antyrael
ID: 34096552
What happens if you use -p ""? (two double quotes would be an empty string, right?)
0
The Ultimate Checklist to Optimize Your Website

Websites are getting bigger and complicated by the day. Video, images, custom fonts are all great for showcasing your product/service. But the price to pay in terms of reduced page load times and ultimately, decreased sales, can lead to some difficult decisions about what to cut.

 
LVL 7

Accepted Solution

by:
marklogan earned 500 total points
ID: 34096997
Just use

C:\wamp\bin\mysql\mysql5.1.36\bin\mysqldump -u user -p  test > dump.sql

and you should be prompted to type the password in.
0
 
LVL 7

Expert Comment

by:marklogan
ID: 34097008
http://dev.mysql.com/doc/refman/5.1/en/mysqldump.html

"The password to use when connecting to the server. If you use the short option form (-p), you cannot have a space between the option and the password. If you omit the password value following the --password or -p option on the command line, mysqldump prompts for one."
0
 
LVL 43

Expert Comment

by:Steve Knight
ID: 34097716
Not familiar with this sql command it but if it waits for a password from a command prompt as opposed to a pop up window then you could try piping one into the program:

echo.|c:\wamp\bin\mysql\mysql5.1.36\bin\mysqldump -u user -p  test > dump.sql

(or whatever you need to do for the password prompt to appear)

Steve
0
 
LVL 5

Expert Comment

by:dacasey
ID: 34104116
You can remove the password from the server

mysqladmin -u root -p password ”

Once executed you should be able to connect using that username and no password.

I'll leave out the security chat...


0
 

Author Closing Comment

by:pillmill
ID: 34104456
Thanks
0

Featured Post

Microsoft Certification Exam 74-409

Veeam® is happy to provide the Microsoft community with a study guide prepared by MVP and MCT, Orin Thomas. This guide will take you through each of the exam objectives, helping you to prepare for and pass the examination.

Question has a verified solution.

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

Being a system administrator some time we require to do things remotely, one of them is installing software. Here I am going to tell you how to install software through wmic (Windows management instrument console). I am not at all saying that this i…
When you start your Windows 10 PC and got an "Operating system not found" error or just saw  "Auto repair for startup" or a blinking cursor with black screen. A loop for Auto repair will start but fix nothing.  You will be panic as there are no back…
Two types of users will appreciate AOMEI Backupper Pro: 1 - Those with PCIe drives (and haven't found cloning software that works on them). 2 - Those who want a fast clone of their boot drive (no re-boots needed) and it can clone your drive wh…
In this video, viewers will be given step by step instructions on adjusting mouse, pointer and cursor visibility in Microsoft Windows 10. The video seeks to educate those who are struggling with the new Windows 10 Graphical User Interface. Change Cu…

729 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