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Full Discussion: Pipeing Individual Echos
Top Forums UNIX for Dummies Questions & Answers Pipeing Individual Echos Post 302398841 by binlib on Thursday 25th of February 2010 06:26:33 PM
Old 02-25-2010
Your shoutout function (executed by the shell) actually flushs each line. To simulate the frame rendering program, I will use perl which can be told to do line flushing or not:
Code:
~$ cmd='print scalar localtime;sleep(5);print scalar localtime'
~$ perl -le"$cmd" 
Thu Feb 25 18:16:45 2010
Thu Feb 25 18:16:50 2010
~$ perl -le"$cmd" |while read x;do date "+%T $x";done
18:17:01 Thu Feb 25 18:16:56 2010
18:17:01 Thu Feb 25 18:17:01 2010
~$ perl -le"\$|=1;$cmd" |while read x;do date "+%T $x";done
18:17:05 Thu Feb 25 18:17:05 2010
18:17:10 Thu Feb 25 18:17:10 2010
~$ ssh -t localhost "perl -le'$cmd'" |while read x;do date "+%T $x";done
18:17:21 Thu Feb 25 18:17:21 2010
18:17:26 Thu Feb 25 18:17:26 2010

 

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