Folks, sorry for the delay, I was sick in the meantime. Now, I try to summarize all my finding in the hopes that bash package maintainer can pick up from here.
When starting a terminal on my Windows 7 64 bit system $PATH contains a dot at the end. The dot is not present in my Windows environment nor is it added in one of the startup scripts. The dot appears even if startup scripts are disabled. sh does _not_ exhibit the behavior. Also, other shells do not do this. Simple test in a Windows cmd window (first command shows there is no dot at the end): Microsoft Windows [Version 6.1.7601] Copyright (c) 2009 Microsoft Corporation. Alle Rechte vorbehalten. C:\Users\rklemme>path PATH=C:\PROGRAM FILES (X86)\NVIDIA CORPORATION\PHYSX\COMMON;C:\PROGRAM FILES (X86)\INTEL\ICLS CLIENT\;C:\PROGRAM FILES\I NTEL\ICLS CLIENT\;C:\PROGRAM FILES (X86)\RSA SECURID TOKEN COMMON;C:\PROGRAM FILES\COMMON FILES\MICROSOFT SHARED\WINDOWS LIVE;C:\PROGRAM FILES (X86)\COMMON FILES\MICROSOFT SHARED\WINDOWS LIVE;C:\Windows\SYSTEM32;C:\Windows;C:\Windows\SYSTEM 32\WBEM;C:\Windows\SYSTEM32\WINDOWSPOWERSHELL\V1.0\;C:\PROGRAM FILES\DELL\DELL DATA PROTECTION\ACCESS\ADVANCED\WAVE\GEMA LTO\ACCESS CLIENT\V5\;C:\PROGRAM FILES (X86)\NTRU CRYPTOSYSTEMS\NTRU TCG SOFTWARE STACK\BIN\;C:\PROGRAM FILES\NTRU CRYPT OSYSTEMS\NTRU TCG SOFTWARE STACK\BIN\;C:\PROGRAM FILES (X86)\WINDOWS LIVE\SHARED;C:\PROGRAM FILES\INTEL\INTEL(R) MANAGEM ENT ENGINE COMPONENTS\DAL;C:\PROGRAM FILES\INTEL\INTEL(R) MANAGEMENT ENGINE COMPONENTS\IPT;C:\PROGRAM FILES (X86)\INTEL\ INTEL(R) MANAGEMENT ENGINE COMPONENTS\DAL;C:\PROGRAM FILES (X86)\INTEL\INTEL(R) MANAGEMENT ENGINE COMPONENTS\IPT;C:\Prog ram Files\WIDCOMM\Bluetooth Software\;C:\Program Files\WIDCOMM\Bluetooth Software\syswow64;C:\Program Files (x86)\Intel\ OpenCL SDK\2.0\bin\x86;C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x64;C:\Program Files\Intel\Intel(R) Management En gine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\Intel\Intel( R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Fi les\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;C:\Users\rklemme\Applications\SysinternalsSuite C:\Users\rklemme>c:\cygwin64\bin\bash.exe --norc --noprofile -i -l bash-4.1$ echo "$PATH" /cygdrive/c/PROGRAM FILES (X86)/NVIDIA CORPORATION/PHYSX/COMMON:/cygdrive/c/PROGRAM FILES (X86)/INTEL/ICLS CLIENT:/cygdr ive/c/PROGRAM FILES/INTEL/ICLS CLIENT:/cygdrive/c/PROGRAM FILES (X86)/RSA SECURID TOKEN COMMON:/cygdrive/c/PROGRAM FILES /COMMON FILES/MICROSOFT SHARED/WINDOWS LIVE:/cygdrive/c/PROGRAM FILES (X86)/COMMON FILES/MICROSOFT SHARED/WINDOWS LIVE:/ cygdrive/c/Windows/SYSTEM32:/cygdrive/c/Windows:/cygdrive/c/Windows/SYSTEM32/WBEM:/cygdrive/c/Windows/SYSTEM32/WINDOWSPO WERSHELL/V1.0:/cygdrive/c/PROGRAM FILES/DELL/DELL DATA PROTECTION/ACCESS/ADVANCED/WAVE/GEMALTO/ACCESS CLIENT/V5:/cygdriv e/c/PROGRAM FILES (X86)/NTRU CRYPTOSYSTEMS/NTRU TCG SOFTWARE STACK/BIN:/cygdrive/c/PROGRAM FILES/NTRU CRYPTOSYSTEMS/NTRU TCG SOFTWARE STACK/BIN:/cygdrive/c/PROGRAM FILES (X86)/WINDOWS LIVE/SHARED:/cygdrive/c/PROGRAM FILES/INTEL/INTEL(R) MAN AGEMENT ENGINE COMPONENTS/DAL:/cygdrive/c/PROGRAM FILES/INTEL/INTEL(R) MANAGEMENT ENGINE COMPONENTS/IPT:/cygdrive/c/PROG RAM FILES (X86)/INTEL/INTEL(R) MANAGEMENT ENGINE COMPONENTS/DAL:/cygdrive/c/PROGRAM FILES (X86)/INTEL/INTEL(R) MANAGEMEN T ENGINE COMPONENTS/IPT:/cygdrive/c/Program Files/WIDCOMM/Bluetooth Software:/cygdrive/c/Program Files/WIDCOMM/Bluetooth Software/syswow64:/cygdrive/c/Program Files (x86)/Intel/OpenCL SDK/2.0/bin/x86:/cygdrive/c/Program Files (x86)/Intel/Op enCL SDK/2.0/bin/x64:/cygdrive/c/Program Files/Intel/Intel(R) Management Engine Components/DAL:/cygdrive/c/Program Files /Intel/Intel(R) Management Engine Components/IPT:/cygdrive/c/Program Files (x86)/Intel/Intel(R) Management Engine Compon ents/DAL:/cygdrive/c/Program Files (x86)/Intel/Intel(R) Management Engine Components/IPT:/cygdrive/c/Program Files/Intel /WiFi/bin:/cygdrive/c/Program Files/Common Files/Intel/WirelessCommon:/cygdrive/c/Users/rklemme/Applications/Sysinternal sSuite:. bash-4.1$ Note the last line ends with ":.". The phenomenon persists, for these executions: c:\cygwin64\bin\bash.exe --norc --noprofile -i c:\cygwin64\bin\bash.exe --norc --noprofile c:\cygwin64\bin\bash.exe -i -l Actually I could not find a commandline with bash that did not lead to the dot appended. Invoking sh does not show the effect: C:\Users\rklemme>c:\cygwin64\bin\sh.exe --norc --noprofile -i -l sh-4.1$ echo "$PATH" /cygdrive/c/PROGRAM FILES (X86)/NVIDIA CORPORATION/PHYSX/COMMON:/cygdrive/c/PROGRAM FILES (X86)/INTEL/ICLS CLIENT:/cygdr ive/c/PROGRAM FILES/INTEL/ICLS CLIENT:/cygdrive/c/PROGRAM FILES (X86)/RSA SECURID TOKEN COMMON:/cygdrive/c/PROGRAM FILES /COMMON FILES/MICROSOFT SHARED/WINDOWS LIVE:/cygdrive/c/PROGRAM FILES (X86)/COMMON FILES/MICROSOFT SHARED/WINDOWS LIVE:/ cygdrive/c/Windows/SYSTEM32:/cygdrive/c/Windows:/cygdrive/c/Windows/SYSTEM32/WBEM:/cygdrive/c/Windows/SYSTEM32/WINDOWSPO WERSHELL/V1.0:/cygdrive/c/PROGRAM FILES/DELL/DELL DATA PROTECTION/ACCESS/ADVANCED/WAVE/GEMALTO/ACCESS CLIENT/V5:/cygdriv e/c/PROGRAM FILES (X86)/NTRU CRYPTOSYSTEMS/NTRU TCG SOFTWARE STACK/BIN:/cygdrive/c/PROGRAM FILES/NTRU CRYPTOSYSTEMS/NTRU TCG SOFTWARE STACK/BIN:/cygdrive/c/PROGRAM FILES (X86)/WINDOWS LIVE/SHARED:/cygdrive/c/PROGRAM FILES/INTEL/INTEL(R) MAN AGEMENT ENGINE COMPONENTS/DAL:/cygdrive/c/PROGRAM FILES/INTEL/INTEL(R) MANAGEMENT ENGINE COMPONENTS/IPT:/cygdrive/c/PROG RAM FILES (X86)/INTEL/INTEL(R) MANAGEMENT ENGINE COMPONENTS/DAL:/cygdrive/c/PROGRAM FILES (X86)/INTEL/INTEL(R) MANAGEMEN T ENGINE COMPONENTS/IPT:/cygdrive/c/Program Files/WIDCOMM/Bluetooth Software:/cygdrive/c/Program Files/WIDCOMM/Bluetooth Software/syswow64:/cygdrive/c/Program Files (x86)/Intel/OpenCL SDK/2.0/bin/x86:/cygdrive/c/Program Files (x86)/Intel/Op enCL SDK/2.0/bin/x64:/cygdrive/c/Program Files/Intel/Intel(R) Management Engine Components/DAL:/cygdrive/c/Program Files /Intel/Intel(R) Management Engine Components/IPT:/cygdrive/c/Program Files (x86)/Intel/Intel(R) Management Engine Compon ents/DAL:/cygdrive/c/Program Files (x86)/Intel/Intel(R) Management Engine Components/IPT:/cygdrive/c/Program Files/Intel /WiFi/bin:/cygdrive/c/Program Files/Common Files/Intel/WirelessCommon:/cygdrive/c/Users/rklemme/Applications/Sysinternal sSuite ... and all other shells I tested (zsh, dash, mksh). Both sh and bash report as the same software: C:\Users\rklemme>c:\cygwin64\bin\bash.exe --version GNU bash, version 4.1.11(2)-release (x86_64-unknown-cygwin) Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software; you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. C:\Users\rklemme>c:\cygwin64\bin\sh.exe --version GNU bash, version 4.1.11(2)-release (x86_64-unknown-cygwin) Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software; you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. BUT: there are binary differences in those files (sorry for the German, but I guess you get the point): C:\Users\rklemme>comp c:\cygwin64\bin\bash.exe c:\cygwin64\bin\sh.exe Vergleichen von C:\cygwin64\bin\bash.exe und C:\cygwin64\bin\sh.exe... Unterschied festgestellt bei OFFSET 88 Datei1 = AB Datei2 = AE Unterschied festgestellt bei OFFSET D8 Datei1 = 91 Datei2 = DB Unterschied festgestellt bei OFFSET D9 Datei1 = 1D Datei2 = C2 Unterschied festgestellt bei OFFSET DA Datei1 = A Datei2 = 9 Unterschied festgestellt bei OFFSET 2F8 Datei1 = 14 Datei2 = 10 Unterschied festgestellt bei OFFSET 9A600 Datei1 = 62 Datei2 = 73 Unterschied festgestellt bei OFFSET 9A601 Datei1 = 61 Datei2 = 68 Unterschied festgestellt bei OFFSET 9A602 Datei1 = 73 Datei2 = 2E Unterschied festgestellt bei OFFSET 9A603 Datei1 = 68 Datei2 = 65 Unterschied festgestellt bei OFFSET 9A604 Datei1 = 2E Datei2 = 78 10 Unterschiede - Vergleich beendet Weitere Dateien vergleichen (J/N) ? n I created the attached cygcheck.out at the same cmd prompt (i.e. not from bash) which explains that quite a few programs are not found: C:\Users\rklemme>c:\cygwin64\bin\cygcheck -s -v -r > cygcheck.out I also obtained official bash sources from GNU site to find out whether I can identify the cause but to no avail. Thank you for listening so far! Kind regards robert -- [guy, jim].each {|him| remember.him do |as, often| as.you_can - without end} http://blog.rubybestpractices.com/
cygcheck.out
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