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Re: why doesn't my system('cls') work?

by bibo (Pilgrim)
on Oct 06, 2004 at 17:09 UTC ( #397095=note: print w/replies, xml ) Need Help??

in reply to why doesn't my system('cls') work?

Well, right off the bat, there is no program named or cls.exe out there. It's a command built into the shell, cmd.exe.



My point is this: system and spawn and fork and their tickish brethern will launch a new process. Those new command windows could clean their own screens with cls, but you cannot clear the screen of the currently running command window by starting a new process.

is this helping?

Replies are listed 'Best First'.
Re^2: why doesn't my system('cls') work?
by Anonymous Monk on Oct 06, 2004 at 18:48 UTC
    Just for the record, system 'cls'; does clear the screen on a sane Win(NT|2K|XP) installation.
Re^2: why doesn't my system('cls') work?
by LanceDeeply (Chaplain) on Oct 06, 2004 at 17:17 UTC
    might want to check that.
    the following outupt is from win xp
    C:\WINDOWS>dir cmd.exe /s Volume in drive C has no label. Volume Serial Number is 3833-835E Directory of C:\WINDOWS\system32 08/23/2001 04:00 AM 375,808 cmd.exe 1 File(s) 375,808 bytes
    you may wany to double check your %PATH% and make sure the directory that contains your cmd.exe is in it.

      The poster stipulated there was no cls command... not no cmd command.
        sorry for misreading that, but we did fix OP's %PATH% problem.
        I concur with your analysis.

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