finding and deleting duplicate lines from a txt file

[MJLM]

Would it be possible to have Autolisp read a txt file and delete all duplicate files?

 

I know that doesn't require necessarily autolisp but the values in the file come from an Autolisp routine and I though I could integrate it so that I can have the file ready with not duplicates.

 

Any ideas would be appreciated.

[Bhull1985]

Yes, please look into the (vl-remove-if-not) functions.

Here are a couple examples a quick google search turned up

 

http://forums.augi.com/showthread.php?29269-Delete-Duplicate-Text-in-the-same-object

 

http://forums.autodesk.com/t5/Visual-LISP-AutoLISP-and-General/How-to-find-duplicate-text-string/td-p/1990898

 

(post following is from someone much smarter, I was just trying to be of assistance)

[MSasu]

If the content of said file comes from an AutoLISP routine, then may easily integrate a code to store the lines into a list and use MEMBER function to validate if a line isn't already there and therefore shoudn't be added again.

[MJLM]

MSasu thank you for letting me know the member command. It worked perfectly making as you said a list and use of member command. Thank you.

[MSasu]

Sound good MJLM; you're entirely welcome!

One observation for the sake of conformity, is about a function and not a command.