AutoHotkey Community

I need to add an item to a text file if it does not already exist in the text file.

For example:

I have the file userlist.txt on a server.
When someone loads the AHK program it checks to see if their computer name is on userlist.txt. If it is not on userlist.txt, the AHK program adds it to the list.

I can't figure out how to do this. Thanks!

Look at:
- Fileread (to read userlist.txt in var)
- IfNotInString (to check if user isn't already in userlist.txt)
- Fileappend (to add new user to userlist.txt)
Be careful of partial matches, e.g. John will also match BigJohn, if
that happens may want to look at a parsing loop to check
each user in userlist.txt explicitly.

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AHK FAQ
TF : Text files & strings lib, TF Forum

OR

An alternative would be to read the file line by line (1 user name per line) with a Loop, Read: This will look for a non case sensitive match. To use HugoV's example, if user is BigJohn then John will not match it.

Hope this helps.

dmatch

another example that might help you

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HTH...

I personally would use python for something like this