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bash tries to exec scripts with no exec mode bits.

From: Alan Donovan
Subject: bash tries to exec scripts with no exec mode bits.
Date: Tue, 3 Dec 2002 15:55:26 -0500

Configuration Information [Automatically generated, do not change]:
Machine: i686
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='i686' 
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i686-pc-linux-gnu' 
-I./lib -O2 -march=i386 -mcpu=i686
uname output: Linux scallion 2.4.18-18.7.x #1 Wed Nov 13 19:30:43 EST 2002 i686 
Machine Type: i686-pc-linux-gnu

Bash Version: 2.05a
Patch Level: 0
Release Status: release

    bash tries to execute scripts that do not have execute mode bits.


    % ^X^V
    GNU bash, version 2.05a.0(1)-release (i686-pc-linux-gnu)
    % cat >$HOME/bin/scripts/foo                # create a script
    echo foo
    % ls -l $HOME/bin/scripts/foo
    -rw-rw-r--   [...]/bin/scripts/foo          # note: no exec mode bits    
    % export PATH=$HOME/bin/scripts:$PATH       # put it on the PATH
    % which foo
    /usr/bin/which: no foo in (...PATH...)      # good: no exec
    % type foo
    foo is /g1/users/adonovan/bin/scripts/foo   # uh-oh!
    % foo
    bash: /g1/users/adonovan/bin/scripts/foo: \
    /bin/sh: bad interpreter: Permission denied # uh-oh!
This behaviour is unexpected and I think different from previous
versions of bash.  Note that hash -r makes no difference.  Bash
builtin 'type' shouldn't consider 'foo' a command.

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