Beefy Boxes and Bandwidth Generously Provided by pair Networks
Your skill will accomplish
what the force of many cannot
 
PerlMonks  

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*


Comment on Re: How to UPDATE rather than append to STDOUT?
Select or Download Code
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.

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://175345]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others avoiding work at the Monastery: (13)
As of 2014-10-21 19:22 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    For retirement, I am banking on:










    Results (106 votes), past polls