[techtalk] How a script is called

[Conor Daly]

Anyone know how a bash / csh script can tell if it was called in a pipeline or
directly from the commandline?  I've a script that I want to run either by
catting a file through a pipe or by invoking from the commandline with the
file as an arg and I need the script to behave slightly differently in either
case.

-- 
Conor Daly <conor.daly at oceanfree.net>

Domestic Sysadmin :-)