Beefy Boxes and Bandwidth Generously Provided by pair Networks
"be consistent"

Re: what's appens with this FH ??

by krusty (Hermit)
on Oct 19, 2002 at 17:17 UTC ( #206533=note: print w/ replies, xml ) Need Help??

in reply to what's appens with this FH ??

The first open opens c:\winnt\temp\hash.tmp for reading and for writing, but you didn't do a seek to the beginning of the file when you started reading.
Perhaps another wise monk could explain here, but I'm going to guess that since the file was never closed, its not reading an end of file marker and is just pushing out whatever is left in its stack.
You may have noticed the print statement never prints out to STDOUT

aba uba
niba seba
njak yuk

Add a seek and all may be well again:
#!/usr/bin/perl -w open (TEMPO, "+>c:\\winnt\\temp\\hash.tmp"); print (TEMPO "aba uba\niba seba\njak yuk\n"); ############open (TEMPO, "<c:\\winnt\\temp\\hash.tmp"); seek TEMPO, 0, 0; while (<TEMPO>) { print; }
Comment on Re: what's appens with this FH ??
Download Code

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://206533]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others making s'mores by the fire in the courtyard of the Monastery: (4)
As of 2016-04-30 05:55 GMT
Find Nodes?
    Voting Booth?
    :nehw tseb si esrever ni gnitirW

    Results (441 votes). Check out past polls.