SNiFF+ without display (batch mode)

You can start a SNiFF+ session without a display. This is particularly useful on Unix, since you can then run SNiFF+ without an Xserver host during unattended updates of your working environments.
SNiFF+ runs without a display when the

SNIFF_BATCH environment variable is set to 1 . To set the variable:
On Unix:

Open a shell in which you will be updating your working environments.
In the shell, set the

SNIFF_BATCH environment variable to 1 :
setenv SNIFF_BATCH 1
When updating your working environments, run the appropriate update scripts without the <Xserver_host> parameter.
On Windows:

Open a Command Prompt in which you will be updating your working environments.
In the Command Prompt, set the

SNIFF_BATCH environment variable to 1 :
set SNIFF_BATCH=1