Subject: procmail question :0 versus :0: ?

From: "G. Harney" <gharney@explorer>
Date: Fri, 18 Nov 1994 15:27:06 -0500

I have got procmail to work fine, no problems.  But I have noticed
some people are using  :0:  in their rc files, versus  :0.

Whats the difference?

Best,
-Giles

---

From: "Michael J. Corrigan" <[email-masked]>
Date: Sat, 19 Nov 1994 09:52:36 -0800

> some people are using  :0:  in their rc files, versus  :0.

A ':' at the end of the recipe flag line specifies that procmail
should use a lockfile during that recipe's processing.
Recipes with just :0 do not use a lockfile during recipe processing.
A 3rd form of the flag line is :0:lockfile which tells procmail
to use "lockfile" as the name of the lockfile.

Use of lockfiles is recommended for all recipes that result
in writing to a file such as the recipes like:
:0:
*^header: whatever
folder