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Re^2: Perl/Tk System Function Error

by afoken (Abbot)
on Nov 18, 2011 at 10:20 UTC ( #938771=note: print w/replies, xml ) Need Help??


in reply to Re: Perl/Tk System Function Error
in thread Perl/Tk System Function Error

removing the double-quotes makes it run [...] Not sure why

Simple: The first argument of the start command, when put in double quotes, is taken as the requested window title. If you need to quote the command to be started, you also need to provide a dummy window title, i.e.:

system('start "" "C:\\program files\\my application\\kaboom.exe" /foo +/bar');

Also note that system() has a special case on Windows to run a program (with arguments) without waiting for it, and without having to mess with any shell or the braindead start program. This is documented in perlport:

system(1,'C:\\program files\\my application\\kaboom.exe','/foo','/bar' +); # ^-- the 1 is the special case for Windows

Alexander

--
Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)

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[shmem]: perldigious: as always - if it ain't broke, don't fix it. Ther must be a very compelling reason for changing column names in a database. Those are rare.
[Corion]: If you have whitespace in the column names in the database, whap the DBAs ;)
[shmem]: It's common for some vendors to have column names such as WRSTVG or some other such whizzbang, and another table where these names are mapped to something meaningful depending on how you look at the data
[shmem]: afair in SAP that occurs all the time

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