Re^2: Launch an exe using system

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Re^3: Launch an exe using system by GrandFather (Saint) on Nov 14, 2011 at 08:54 UTC
Well, there is the clue right there: the path to the "program" you want got truncated at the space. Just as you do on the command line you need to quote parameters that include spaces and similar interesting characters. One way to do that is: `system(qq{start "C:\\Program Files (x86)\\Microsoft LifeCam\\LifeCam.e +xe"});` [download] See Quote and Quote like Operators True laziness is hard work	[reply] [d/l]
Re^3: Launch an exe using system by Corion (Patriarch) on Nov 14, 2011 at 08:57 UTC
You will need to supply proper quotes to the `start` command: `my $cmd = qq{start "C:\\Program Files (x86)\\Microsoft LifeCam\\LifeCa +m.exe"}; system($cmd) == 0 or die "Couldn't launch [$cmd]: $! / $?";` [download] Alternatively, you can use the form of `system(1, ...)` as documented in perlport: `system( 1, $cmd ) ...` [download]	[reply] [d/l] [select]
Re^4: Launch an exe using system by priyaviswam (Sexton) on Nov 14, 2011 at 11:24 UTC
Thanks of the response. I tried the following code : `my $LifeCamLoc = "C:\\Program Files (x86)\\Microsoft LifeCam"; system('start "$LifeCamLoc"'); system('start LifeCam.exe');` [download]	[reply] [d/l]
Re^5: Launch an exe using system by Corion (Patriarch) on Nov 14, 2011 at 11:34 UTC
Maybe you want to read the documentation for the `start` command of `cmd.exe`? The `start` command takes at least two parameters, the title and the command to launch. So you will need to pass it two parameters from your script too.	[reply] [d/l] [select]
Re^5: Launch an exe using system by GrandFather (Saint) on Nov 14, 2011 at 19:53 UTC
To get a feel for what the OS is going to see replace system with print then figure out if what you see is what you would type at the command line to get the effect you expect. True laziness is hard work	[reply]
Re^3: Launch an exe using system by davido (Cardinal) on Nov 14, 2011 at 08:52 UTC
How would you handle that if you were typing `start .....` on the command line? There are some Windows utilities that don't play nice with spaces in the path names, and for those you usually have to use quoting. That being the case, you're not looking at a Perl problem, you're looking at a "I don't know how to use my operating system." problem. That's alright. But you should at least be aware where the issue is. Try this (untested, but ...at least try it... ;) `system( qq/start "C:\\Program Files (x86)\\Microsoft LifeCam\\LifeCam.exe"/ );` [download] Dave	[reply] [d/l] [select]
Re^4: Launch an exe using system by GrandFather (Saint) on Nov 14, 2011 at 09:07 UTC
It's not so much the Windows utilities that can't handle the spaces (although that may be true), but the command line parsing that is performed by Window's equivalent of the "shell". The quoting is needed to have a command line argument that includes spaces be treated as a single argument rather than being broken into multiple arguments at the spaces. Exactly the same situation exists for nix shells, although the quoting options are different. Oh, and various nixen have their share of utilities that don't play well with paths containing spaces too. ;) True laziness is hard work	[reply]