"#!" scripts, kernel patches, and Xenix

[Phil Hughes]

In article <858 at viscous>, rosso at sco.COM (Ross Oliver) writes:
| In article <161 at tessera.UUCP> jtc at tessera.UUCP (J.T. Conklin) writes:
| >Has anyone patched the kernel exec routine to execute interpreter
| >files ("#!" scripts)?
| 
| The exec() function executes binaries only.  If exec() fails (which
| it does on a shell script), then it is up to your shell to decide
| what to do.  The Bourne shell then executes "sh <file>"  The C shell
| will look at the first line, and if it starts with "#!", csh executes
| the script as "csh <file>", otherwise, it uses "sh <file>"  The
| Bourne shell, of course, assumes everything that is not a binary is
| a Bourne shell script.
| 
| Ross Oliver
| SCO Technical Support
| uunet!sco!rosso

I take it to mean that, at least, SCO hasn't.
Also, csh only looks for the #, not #! on SCO XENIX (or any other
system for that matter).



-- 
Phil    uunet!pilchuck!ssc!fyl