Bug in #! processing
Brandon S. Allbery KF8NH
allbery at ece.cmu.edu
Fri Oct 1 05:45:38 PDT 2004
On Thu, 2004-09-30 at 09:16, Sławek Żak wrote:
> "David G. Lawrence" <dg at dglawrence.com> writes:
> > The #! is required to be in the first two bytes of the file, so there
> > can't be any spaces before it.
>
> Oh. Thus in following script:
>
> thirst<zaks>(1950)% cat tst.sh
> #!/bin/no-such-file
> ps -lp $$
exec*() fails in that case, and shells assume it's a sh script. csh
(used to?) assume a csh script if the first character is #, or you can
use "alias shell" to tell it which shell to assume. This is how scripts
worked before #!.
--
brandon s. allbery [linux,solaris,freebsd,perl] allbery at kf8nh.com
system administrator [WAY too many hats] allbery at ece.cmu.edu
electrical and computer engineering, carnegie mellon univ. KF8NH
More information about the freebsd-current
mailing list