how to delete data files from cRIO

[fpdriscoll]

Please forgive my ignorance, but I don't see how to delete old data files from a cRIO.  I've been trying to get a datalogger functional, and I've got some old data files on the cRIO.  I ftp off copies of the files through IE, but I don't know how to delete the files from the cRIO.

[WillD · Accepted solution]

If you FTP through Windows Explorer, My Computer, ftp://IP in the address bar, you should be able to delete files.

[trickador]

Is there a way to do this programmatically?

[timtamslam]

Hey there trickador,

There is a host of functions available for FTP. You can find them by navigating to the Functions Palette of your block diagram and going to Data Communication>>Protocols>>FTP.

You will probably notice that... there isn't a specific delete function. This is where things get a little big tricky. With whats currently exposed in the palette there isn't access to a delete function but it is possible to access it from the source FTP library. Check it out,

Navigate to: C:\Program Files\National Instruments\LabVIEW 2012\vi.lib\FTP\NI_FTP.lvlib

There are 3 .llb's here. The FTP1.llb contains the lower level FTP components. One of which is FTP [DELE].vi. That should give you programmatic access to delete a file via FTP. However, you should be very careful when you are using this to make sure that you dont delete something on accident!

Hope this helps!

[britstanger]

Hello when I try deleting files from my CRIO using IE i get error: 403 forbidden.  Even though i have logged onto the CRIO as 'admin' with a password.

Any Idea why this might be?

sorry i just realised i wasnt browsing through FTP 

I was just using the HTTP version which would not allow me to delete the files. 

[Ozfarmboy]

Fast forward to 2019, FTP is no longer supported.

To delete files I did this:

0 - In NI MAX, Enable Secure Shell Server and reboot cRIO

1 - Open Putty app

2 - Type in IP address of cRIO into Host, ie. 192.168.0.14.  Port = 22

3 - Press Open, which will launch a Linux shell session

4 - Login as: admin

5 - Password: <your_password>

6 - Type pwd to see where you currently are in the file structure, ie. /home/admin

7 - Traverse to your desired directory using cd command ie. cd /c/<yourdir>

8 - Type ls -al to list all files in selected dir

9 - Use rm cmd to delete files, ie. rm -i *.* (-i option will prompt you for every file)

Manual approach, but it worked.

[Simon_A]

Hello

What if a Virtual Machine doesn't recognize ssh command to recursive delete files by this method?

Thanks

[Ozfarmboy]

Are you communicating to the cRIO via a VM, or is the VM acting as the cRIO?

[Simon_A]

Hello Ozfarmboy

I am communicating to the cRIO via a VM. I have approximately 10 cRIO installed under a technical network and i can't go to everyone that i want to delete files when the memory go away.

Thanks btw.