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Re: overwriting a file

by Sidhekin (Priest)
on Oct 30, 2007 at 11:15 UTC ( #647998=note: print w/replies, xml ) Need Help??


in reply to overwriting a file

As long as you open the file with mode >, the old contents should be gone already.

Assuming you are opening with mode +>, +< or similar (for read/seek/write combos, particularly useful with file locking), this is a real problem, and the solution you are looking for is truncate, probably with tell:

truncate( OPENFILE, tell(OPENFILE) );

(Alternatively, if you can safely truncate to 0 before you even start writing, that might be clearer.)

print "Just another Perl ${\(trickster and hacker)},"
The Sidhekin proves Sidhe did it!

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[Eily]: do you pronunce that /xju:mən/ then ?
[Eily]: that's not what I'd call a silent h :)
[LanX]: see soundfile https://en. wiktionary.org/ wiki/human# Pronunciation
[Your Mother]: Just Another Perl 'Acker.
[LanX]: I pronounce it 'juːmən'
[Your Mother]: Hey, let's not bring antisemitism into the conversation.
[LanX]: for centuries posh English speakers tried to approach French, that's where all the trouble starts
[Eily]: Just another Perl coeurs
[Eily]: (perl with hearts, 'Acker with a French accent is pronunced like coeurs)
[LanX]: IMHO 'ju' for 'u' happens in English where they can't pronounce the French u (or German )

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