Solved

How to import a text file to a environment variable in a batch file

Posted on 2011-02-22
5
517 Views
Last Modified: 2012-05-11
I am trying to use a path previously stored as a text file to set an environment variable in a windows batch file. I had thought that type file.txt >> %var% would work but it didn't. This should be simple but I need help figuring it out.
0
Comment
Question by:ProTek2
  • 2
  • 2
5 Comments
 
LVL 16

Accepted Solution

by:
sjklein42 earned 500 total points
ID: 34952758
File containing path:

path.txt
c:\foo\bar

Open in new window


command:
for /F %i in (path.txt) do set mysymbol=%i

Open in new window


inside a batch file setPathToFileContents.bat (note doubled %):
@for /F %%i in (%2) do @set %1=%%i

Open in new window



call this way

setPathToFileContents mysymbol path.txt

set
...
mysymbol=c:\foo\bar
...

Open in new window


0
 
LVL 3

Expert Comment

by:MARTiN
ID: 34952763
Hi, I think you should use "Echo" instead of "Type" if you'd be doing it that way or instead use the "SET" command inside of the batch file instead.
0
 

Author Closing Comment

by:ProTek2
ID: 34955398
I'm sure that my inexperience with scripting was the only reason that I didn't follow it exactly. However, I realized after that problem was solved that I hadn't asked the right question. The answer saves the path but it gives no way to find WHERE it is saved when needed.
0
 
LVL 16

Expert Comment

by:sjklein42
ID: 34955744
Yes.  You can use the "path" by referring to it as %mysymbol%

For example, after calling

setPathToFileContents mysymbol path.txt

You can then use that path:

dir %mysymbol%

Of course, you don't need to call it "mysymbol".
0
 

Author Comment

by:ProTek2
ID: 34956399
Not the way I'm using it. The initial batch file will be started by a downloaded setup package and in that .cmd file, PowerShell is used to restart it with the "runas" parameter because administrative privileges are required for the other activities, not the least of which is moving a file into the system path for subsequent use. When the cmd shell is invoked, it is running in c:\windows\system32 instead of the download folder and the normal variables become null. The path may have been saved in a file but the path to the file (which holds the path to the file) is also lost. It turns out that a PushD created variable survives the elevation process and I used that to concatenate the "move" directive that I needed.

But thank you for your information. I'm sure that it will come in handy at some point.
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

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

By default the complete memory dump option is disabled in windows . If we want to enable the complete memory dump for a diagnostic purpose, we have a solution for it. here we are using the registry method to enable this.
When you try to share a printer , you may receive one of the following error messages. Error message when you use the Add Printer Wizard to share a printer: Windows could not share your printer. Operation could not be completed (Error 0x000006…
This Micro Tutorial will teach you the basics of configuring your computer to improve its speed. It will also teach you how to disable programs that are running in the background simultaneously. This will be demonstrated using Windows 7 operating…
This Micro Tutorial will give you a basic overview of Windows DVD Burner through its features and interface. This will be demonstrated using Windows 7 operating system.

838 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