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Re: strange shell output using tcsh under Cygwin




On Mon, 6 Nov 2017 00:15:25 +0000 (UTC)
Will Parsons wrote:

>Under Unix-type platforms, checking on what the PATH variable is set to is
>pretty easy - I typically use "env" and the displayed value of PATH is easily
>parsed by eye.  Under Cygwin/Windows, one can do the same, but the value of
>PATH is more likely to be considerably more complicated and harder for a
>human to parse.  For example, this is what I see on my local machine under
>Cygwin:
>
>   PATH=/usr/local/bin:/usr/bin:/c/Windows/system32:/c/Windows:/c/Windows/system32/wbem:/c/ProgramData/Oracle/Java/javapath:/c/Program Files/Common Files/Microsoft Shared/Windows Live:/c/Program Files (x86)/Common Files/Microsoft Shared/Windows Live:/c/Program Files/Dell/DW WLAN Card:/c/Program Files (x86)/Intel/iCLS Client:/c/Program Files/Intel/iCLS Client:/c/Windows/System32/WindowsPowerShell/v1.0:/c/Program Files/WIDCOMM/Bluetooth Software:/c/Program Files/WIDCOMM/Bluetooth Software/syswow64:/c/Program Files (x86)/Windows Live/Shared:/c/Program Files (x86)/Bazaar:/c/Program Files (x86)/QuickTime/QTSystem:/c/cygwin/home/william/bin:/c/ezwinports/bin:/c/Program Files (x86)/PuTTY:/usr/lib/lapack:/usr/sbin:/c/msys/1.0/local/bin
>
>I thought it would be nice to write a simple script to make this more
>comprehensible by breaking the path into separate lines, and so wrote the
>following trivial script:
>
>   #!/bin/sh
>   echo $PATH | tr ':' '\n'
>
>Oddly though, it does not give the expected results under Cygwin.

As you wrote you are using tcsh try this:

#!/bin/tcsh
foreach i ( `seq 1 $#path` )
  echo $path[$i]
end

Or this slightly faster one:

#!/bin/tcsh
@ i = 1
while ( $i < $#path )
  echo $path[$i]
  @ i++
end


Lookup arrays in tcsh.