Csh brain damaged, but then you already knew that.

[David Canzi]

This happened on a vax running 4.3BSD or something like it:  

watdcsu % history | tail -5
tail: : open of temporary file "5.a" failed -- Permission denied.

It also happened on a Sun running SunOS4.0.3:

shine22% history | tail -5
tail: : open of temporary file "7.a" failed -- Read-only file system.

The problem seems to be that csh tries to create a temporary file in
the current directory, and in the above two cases I didn't have the
necessary permissions.

Feh.

-- 
David Canzi