flush function

[Urs Wagner]

Hello
I have a problem on WinXP. In perl I want to read the tail of a file. 
The  file is written with another windows
program. If I am using a sleep(5) before of the read command I get the 
new tail content. It seems the program
has longer to write it or it is buffered.
Is there a command in perl to flush a file?

Thanks
Urs
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cp command error check

[Urs Wagner]

Hello
This does not work.
`cp $srcfile $dstfile`; || do {
 print "cannot copy $srcfile to $dstfile";
   };
do is also execute if cp working fine. Whz is this so? The next thing I 
would like to
know how I can print the cp's error message.

Thanks
Urs
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Line replace

[Urs Wagner]

Hello
I should comment out lines in a text file. I have a lot of troubles to 
realize this.

The lines
Alpha(a, b, c)
should be changed to
# Alpha(a, b, c)
What I would like to write is a small perl script to make this convetion.
Thanks
Urs
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directory copy command

[Urs Wagner]

Hello
Is there a similar perl command for directory copy like the File:Copy?  
I thinks this one does
not work for directories.

Thanks
Urs
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current directory

[Urs Wagner]

Hello
How can I find out the current directory? I call chdir, afterwards I 
should switch back to the old one.

Thanks
Urs
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