02-24-2014
9 More Discussions You Might Find Interesting
1. Programming
Hi All,
I'm interested in the best way to serve multiple clients from a server process.
Now, our server is going to serve data on a custom protocol and it is going to get / process that data from a number of possible back-ends including files (text or xml) and MySQL/some other database.... (2 Replies)
Discussion started by: dragonfly
2 Replies
2. Shell Programming and Scripting
Hi,
I have a series of BASH shell scripts that run together. I would like it so that these scripts construct a log file as they run. This log file would ideally be a text file that contains exactly (including blank lines) what is output to the terminal.
What is the best way to accomplish... (3 Replies)
Discussion started by: msb65
3 Replies
3. Shell Programming and Scripting
Hello, all!
I am struggling with a short script to read a diagonal matrix for later retrieval.
1.000 0.234 0.435 0.123 0.012 0.102 0.325 0.412 0.087 0.098
1.000 0.111 0.412 0.115 0.058 0.091 0.190 0.045 0.058
1.000 0.205 0.542 0.335 0.054 0.117 0.203 0.125
1.000 0.587 0.159 0.357... (11 Replies)
Discussion started by: yifangt
11 Replies
4. Shell Programming and Scripting
Hello All,
I am a statistician and I am very new to the world of ksh programming. Daily, I analyze millions of rows of data and land information to DB2 tables. I have recently been asked to develop a ksh script to FTP an export file containing line item data from the production environment to the... (2 Replies)
Discussion started by: jonesdk5
2 Replies
5. Shell Programming and Scripting
Hi all - I am trying to write a script to generate a string that gets sent to an IP phone using wget. This is to upload a phone book of up to 100 entries so the string needs to be constructed in one 'hit'. I am a relative newbie to shell scripts but willing to try anything! I have 2 files:
... (3 Replies)
Discussion started by: cakerack
3 Replies
6. Shell Programming and Scripting
I have a file with the information shown and I want to capture the
entry having the rgdt tag and taking the value (the location of the represents the decimal point, for example 0p50 represents 0.50)
I then want to divide the number at the end of each line by the value 0.50
I want to do... (7 Replies)
Discussion started by: kristinu
7 Replies
7. UNIX for Dummies Questions & Answers
I have a text file, data.txt, which looks like :-
head1 head2 head3
data1 1 data 1 2 data 1 3
data 2 1 data 2 2 data 2 3
data 3 1 data 3 2 data 3 3
etc etc
I would like to print this file, using the lp -d command,
with a heading line, as follows :-
Report for whatever department as... (2 Replies)
Discussion started by: malts18
2 Replies
8. Ubuntu
Hi all,
Is there a way to convert full data matrix to linearised left data matrix?
e.g full data matrix
Bh1 Bh2 Bh3 Bh4 Bh5 Bh6 Bh7
Bh1 0 0.241058 0.236129 0.244397 0.237479 0.240767 0.245245
Bh2 0.241058 0 0.240594 0.241931 0.241975 ... (8 Replies)
Discussion started by: evoll
8 Replies
9. Shell Programming and Scripting
Hi everyone
I am very new at awk but think that that might be the best strategy for this. I have a matrix very similar to a correlation matrix and in practical terms I need to convert it into a list containing the values from the matrix (one value per line) with the first field of the line (row... (5 Replies)
Discussion started by: stonemonkey
5 Replies
LEARN ABOUT OSX
ppmtosixel
ppmtosixel(1) General Commands Manual ppmtosixel(1)
NAME
ppmtosixel - convert a portable pixmap into DEC sixel format
SYNOPSIS
ppmtosixel [-raw] [-margin] [ppmfile]
DESCRIPTION
Reads a portable pixmap as input. Produces sixel commands (SIX) as output. The output is formatted for color printing, e.g. for a DEC
LJ250 color inkjet printer.
If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled. A printer control header and a color assignment table
begin the SIX file. Image data is written in a compressed format by default. A printer control footer ends the image file.
OPTIONS
-raw If specified, each pixel will be explicitly described in the image file. If -raw is not specified, output will default to com-
pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands. A raw file is often an order of magni-
tude larger than a compressed file and prints much slower.
-margin
If -margin is not specified, the image will be start at the left margin (of the window, paper, or whatever). If -margin is speci-
fied, a 1.5 inch left margin will offset the image.
PRINTING
Generally, sixel files must reach the printer unfiltered. Use the lpr -x option or cat filename > /dev/tty0?.
BUGS
Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion. If the original PPM maxval was
greater than 100, rescaling also reduces the image depth. While the actual RGB values from the ppm file are more or less retained, the
color palette of the LJ250 may not match the colors on your screen. This seems to be a printer limitation.
SEE ALSO
ppm(5)
AUTHOR
Copyright (C) 1991 by Rick Vinci.
26 April 1991 ppmtosixel(1)