Re^3: Delete a line from files

by karlgoethebier (Abbot)

on Oct 12, 2015 at 11:38 UTC ( [id://1144515]=note: print w/replies, xml )

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"...the purpose of the BEGIN blocks?"

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Update: Slight losses are usual in every combat.

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ŤThe Crux of the Biscuit is the Apostropheť

Comment on Re^3: Delete a line from files

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Re^4: Delete a line from files by Anonymous Monk on Oct 12, 2015 at 21:48 UTC
I meant why set $^I and $^/ at compile time with Begin?	[reply]
Re^5: Delete a line from files by soonix (Canon) on Oct 13, 2015 at 08:56 UTC
These are documented in perlvar for $^I search perlvar for "inplace". This has to be prepared before opening the file $/ (without caret), if you `use` English, you can call it `$INPUT_RECORD_SEPARATOR` - should be set before the first read operation Update: the BEGIN block is necessary so that these assignments are executed before the implicit loop by the -p flag, see perlrun	[reply] [d/l] [select]
Re^6: Delete a line from files by Anonymous Monk on Oct 13, 2015 at 10:08 UTC
what is wrong with first opening the file with open and then setting those variables?	[reply]
Re^7: Delete a line from files by choroba (Cardinal) on Oct 13, 2015 at 10:27 UTC

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