[prog] check if script parent process is "init"
riccarda.cassini at gmx.de
Wed Apr 21 11:31:30 EST 2004
John Clarke wrote:
> On Wed, Apr 21, 2004 at 08:35:35AM +0200, dominik schramm wrote:
> > $ cat caller.sh
> > #!/bin/sh
> > . callee
> > $ cat callee
> > #!/bin/bash
> > # contains bash specific syntax
> > ...
> > My thought was that this couldn't work.
> It'll work fine, because the kernel uses the first line of the script
> (the part after "#!") to find the handler. caller.sh can only contain
> sh commands because it's being run by /bin/sh, but callee is being run
> by /bin/bash so it can include anything that bash understands.
(sorry for jumping in on your thread, Dominik)
I'm not sure I understand. I thought the point Dominik was trying to
make was about *sourcing* the script, and that commands in the sourced
file have to be understood by the interpreter that sources the file.
Just tried it with bash + perl:
with "sourced.pl" being:
print "in perl\n";
When I try to run this, I get:
./test.sh: print: command not found
Doesn't this mean that the shell cannot handle perl's print command?
(Mind you, I just began to do some serious shell programming, only a
couple of days ago, so I could be misunderstanding something
completely... no flames please :-)
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