Sponsored Content
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

 

8 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Multiple echos and cuts too slow

Hi guys, hopefully this hasn't been asked before - couldn't see the question anywhere. I have a large number of timestamps (hh-mm-ss-millisecond) that I need to find the difference between e.g.: 14-11-07-513 14-11-07-644 Now the script that I have just knocked up is horrifically slow,... (4 Replies)
Discussion started by: dlam
4 Replies

2. Shell Programming and Scripting

Adding the individual columns of a matrix.

I have a huge matrix file containing some 1.5 million rows and 6000 columns. The matrix looks something like this: 1 2 3 4 5 6 7 8 9 3 4 5 I want to add all the numbers in the columns of this matrix and display the result to my stdout. This means that the numbers in the first column are: ... (2 Replies)
Discussion started by: shoaibjameel123
2 Replies

3. UNIX for Dummies Questions & Answers

Print individual rows.

Hi all, I have a file im reading with a for loop using: for i in $(cat filename) do etc. done the original file is 3 columns, this method prints it out into 3 rows, and i would like to just assign the first to rows (originally first two columns) to separate variables. What would be... (3 Replies)
Discussion started by: jgrosecl
3 Replies

4. HP-UX

Individual file size limit on HP-UX

I got a question on ulimit on HP-UX. I have a log file that gets more than 2 GB and the application crashes because it can not write to log. I browsed through the forum and found one very similar post on ulimit but that was not concluded. Did some analysis and below is some output. >getconf... (6 Replies)
Discussion started by: asutoshch
6 Replies

5. Shell Programming and Scripting

Unpack individual files from tarball

Say you don't want to unpack the whole thing, just individual files or directories within a .tgz. How to do this? (1 Reply)
Discussion started by: stevensw
1 Replies

6. Solaris

Auditing Individual Files

I have some Solaris 9 systems and I'm interested in using the "fm" audit class to track changes to sensitive files but it's too verbose for it to be auditing to that level for EVERY file, so I was wondering if there were a way of restricting the audit of those events to particular files. I... (0 Replies)
Discussion started by: thmnetwork
0 Replies

7. UNIX for Dummies Questions & Answers

Terminal telnet echos garbage

i am trying to make powerterm not echo back this charactor. ≥ When I press control-C I get it that telnet charactor/garbage echos back. how to turn off? where? what config? is there something in powerterm to switch on/off? I do not see it. Redhats offical statement is: "I... (10 Replies)
Discussion started by: olyanderson
10 Replies

8. Solaris

Individual usernames for the same login account

Hi There is an application installed on a server, that has a unique login account, but many users are using it with the same login name! How can we overcame this by creating individual accounts for the same application login account? (11 Replies)
Discussion started by: fretagi
11 Replies
EVOLVOTRON_RENDER(1)						    Evolvotron						      EVOLVOTRON_RENDER(1)

NAME
evolvotron_render - Render an evolvotron function tree to an image. SYNOPSIS
evolvotron_render [-f <frames> ] [-j] [-m <multisample> ] [-s <width> <height> ] [-spheremap] [-v] <imagefile.[png|ppm]> < <file.xml> DESCRIPTION
evolvotron_render reads an evolvotron image function from it's standard input and renders it to the file specified (suffix determines type, defaults to ppm if not recognised). Image functions can be obtained by saving them from the evolvotron applicaiton, or using evolvotron_mutate. See the evolvotron manual (accessible from the evolvotron application's Help menu) for more information on image functions. COMMAND-LINE OPTIONS -j Enable sample jittering. -m <multisample> Enables antialiased rendering. This specifies the size of the sub-pixel sampling grid, so 1 provides the default one- sample-per-pixel behaviour, while 4 provides 16 samples per pixel on a 4x4 grid. Unlike the main evolvotron application, there is no upper limit, but of course rendering time increases as the square of this number. -s <width> <height> Specify resolution of output image. Defaults to 512 512. -v Verbose mode; useful for monitoring progress of large renders. -f <frames> Generates multi-frame animations. .fnnnnnn is inserted into the specified filename (before the filetype suffix, if any). You can use this on functions which weren't evolved in animation mode, but there's no guarantee they have any interesting time/z vari- ation. -spheremap Create a spheremap instead of a planar texture. EXAMPLES
evolvotron_mutate -g > function.xml evolvotron_render -v -s 2048 2048 function.ppm < function.xml AUTHOR
evolvotron_render was written by Tim Day (www.timday.com) and is released under the conditions of the GNU General Public License. See the file LICENSE supplied with the source code for details. SEE ALSO
evolvotron(1), evolvotron_mutate(1) www.timday.com 25 Feb 2004 EVOLVOTRON_RENDER(1)
All times are GMT -4. The time now is 06:51 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy