CODEWITHSUNDEEP
tcl
Andrey Bienkowski
Andrey Bienkowski

Reputation: 1705

How to create an empty file in tcl?

I want to create an empty file or do nothing if a file already exists. Truncating an existing file would be fine too.

Currently I do this:

exec touch file/name.txt

This works, but depends on an external command and will only work on UNIX-y OS. Is there a way to do the same that is both concise and portable?

Upvotes: 0

Views: 3897

Answers (1)

Andrey Bienkowski
Andrey Bienkowski

Reputation: 1705

Just open a file for writing and immediately close it:

Create or truncate (The result is always an empty file):

close [open file/name.txt w]

Create or do nothing (thanks, Donal Fellows):

close [open file/name.txt a]

Thanks to Shawn for this suggestion.

Upvotes: 2

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