Messages in this thread | | | Date | Tue, 6 Mar 2001 15:12:42 +0000 | From | Sean Hunter <> | Subject | Re: binfmt_script and ^M |
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I propose /proc/sys/kernel/im_too_lame_to_learn_how_to_use_the_most_basic_of_unix_tools_so_i_want_the_kernel_to_be_filled_with_crap_to_disguise_my_ineptitude
Any support?
Sean
On Tue, Mar 06, 2001 at 02:45:51PM -0000, Laramie Leavitt wrote: > > Andreas Schwab wrote: > > > Paul Flinders <paul@dawa.demon.co.uk> writes: > > > |> Andreas Schwab wrote: > > > |> > > > |> > This [isspace('\r') == 1] has no significance here. The > > right thing to > > > |> > > > |> > look at is $IFS, which does not contain \r by default. > > The shell only splits > > > |> > > > |> > words by "IFS whitespace", and the kernel should be > > consistent with it: > > > |> > > > > |> > $ echo -e 'ls foo\r' | sh > > > |> > ls: foo: No such file or directory > > > |> > > > |> The problem with that argument is that #!<interpreter> can be applied > > > |> to more than just shells which understand $IFS, so which environment > > > |> variable does the kernel pick? > > > > > > The kernel should use the same default value of IFS as the Bourne shell, > > > ie. the same value you'll get with /bin/sh -c 'echo "$IFS"'. This is > > > independent of any settings in the environment. > > > > > > |> It's a difficult one - logically white space should > > terminate the interpreter > > > > > > No, IFS-whitespace delimits arguments in the Bourne shell. > > > > Way back whenever processing #! was moved from the > > shell to the kernel** this argument would have made sense - > > today I'm not so sure. > > > > But I'm quite happy for the kernel to use just space and > > tab if it wishes, or anything else for that matter but it _is_ > > confusing that the error code doesn't distinguish problems > > with the script from problems with the interpreter. > > > > **Did linux ever rely on the shell for this? > > Maybe the correct answer would be to create a proc entry for this. > That allow the user to decide what is whitespace on his machine, > since nobody here appears to agree. > > User: hmm... Wonder what happes if i do the following > %cat '$#! \n\t\r' > /proc/whitespace > later, % config.sh : Error file not found. > Oops, bug report... ;-) > > Laramie > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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