Not a Perl question per se, but I am trying to deploy Strawberry Perl's PortableZIP, and for the life of me I cannot figure out what the If statement in line 4 below does: (from portableshell.bat) 

@echo off
set drive=%~dp0
set drivep=%drive%
If $#\#$==$#%drive:~-1%#$ set drivep=%drive:~0,-1%
set PATH=%drivep%\perl\site\bin;%drivep%\perl\bin;%drivep%\c\bin;%PATH
+%
rem env variables
set TERM=dumb
set PERL_JSON_BACKEND=JSON::XS
set PERL_YAML_BACKEND=YAML
rem avoid collisions with other perl stuff on your system
set PERL5LIB=
set PERL5OPT=
set PERL_MM_OPT=
set PERL_MB_OPT=
echo ----------------------------------------------
echo  Welcome to Strawberry Perl Portable Edition!
echo  * URL - http://www.strawberryperl.com/ 
echo  * see README.portable.TXT for more info
echo ----------------------------------------------
perl -e "printf("""Perl executable: %%s\nPerl version   : %%vd\n""", $
+^X, $^V)" 2>nul
if ERRORLEVEL==1 echo.&echo FATAL ERROR: 'perl' does not work; check i
+f your strawberry pack is complete!
echo.
cmd /K

[download]

The rest of the script all makes sense to me. This is in regards to Rule of Life #23, "Never ask your users to use something which you yourself do not understand, because you know they will ask about it."

Thanks,
Kevin Zwack

In reply to Question on Strawberry's Portable .bat file by KevinZwack

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