How to append text to a file in golang?

Question

I find os.Open() return a O_RDONLY file and os.Create() return a O_RDWR but can't find a method return a APPEND file pointer.

Any help ?

score 55 · Accepted Answer · edited Aug 24 '14 at 20:49

55

The OpenFile takes a flags argument that you can use:

 os.OpenFile("foo.txt", os.O_RDWR|os.O_APPEND, 0660);

Used with O_CREATE , OpenFile can also serve the same purpose as os.Create()

edited Aug 24 '14 at 20:49

Bartosz

answered Nov 22 '12 at 13:12

nos

12

Add `os.O_CREATE` if "foo.txt" does not exist. – Vince Yuan Dec 05 '15 at 17:07

1 Answers1