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Re: How to UPDATE rather than append to STDOUT?

by particle (Vicar)
on Jun 18, 2002 at 12:05 UTC ( #175345=note: print w/replies, xml ) Need Help??

in reply to How to UPDATE rather than append to STDOUT?

this wasn't mentioned, so i thought i'd add it: you can use $. (input record number) to track which record you've reading from a file.

perl -ne "print qq/\r$. lines processed/;select undef, undef, undef, 0 +.2" your_file_here
four argument select is used as a sub-second delay (sleep allows only integer seconds,) to emulate file processing.

~Particle *accelerates*

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Re^2: How to UPDATE rather than append to STDOUT?
by Anonymous Monk on Oct 07, 2011 at 00:42 UTC
    You can call a system("clear") before each print statement.

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