11 Sep
2016
11 Sep
'16
6:07 a.m.
On Sat, 10 Sep 2016, arnold(a)skeeve.com wrote:
I think that the way the shell "recognized"
scripts was by having exec
fail, otherwise how would it know? I think we'll have to go grubbing in
the source archives to be sure.
Correct; if the exec failed then the invoking shell assumed that it was a
shell script, and spawned a shell to run it.
With the #! hack, it had to be followed by the full path name (white space
optional) and the kernel ran it directly.
--
Dave Horsfall DTM (VK2KFU) "Those who don't understand security will
suffer."