Re: How to UPDATE rather than append to STDOUT?

by particle (Vicar)

on Jun 18, 2002 at 12:05 UTC ( [id://175345]=note: print w/replies, xml )

Need Help??

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
[download]

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.	[reply]

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