How do I cat into an array or is it not possible? Post: 302694641

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Difference between cat , cat > , cat >> and touch !!!

Hi Can anybody tell the difference between Difference between cat , cat > , cat >> and touch command in UNIX? Thanks

2. Programming

Creating an array to hold posix thread ids: Only dynamic array works

I am facing a strange error while creating posix threads: Given below are two snippets of code, the first one works whereas the second one gives a garbage value in the output. Snippet 1 This works: -------------- int *threadids; threadids = (int *) malloc (num_threads * sizeof(int)); ...

3. Shell Programming and Scripting

for i in `cat myname.txt` && for y in `cat yourname.txt`

cat myname.txt John Doe I John Doe II John Doe III ----------------------------------------------------------------------- for i in `cat myname.txt` do echo This is my name: $i >> thi.is.my.name.txt done ----------------------------------------------------------------------- cat...

4. Shell Programming and Scripting

cat in the command line doesn't match cat in the script

Hello, So I sorted my file as I was supposed to: sort -n -r -k 2 -k 1 file1 | uniq > file2 and when I wrote > cat file2 in the command line, I got what I was expecting, but in the script itself ... sort -n -r -k 2 -k 1 averages | uniq > temp cat file2 It wrote a whole...

5. Shell Programming and Scripting

Bash: Zeilen aus Datei mit cat und grep in dynamisches Array schreiben

Hallo, ich habe eine Datei "Kino.ini" die z.B. wie folgt aussieht * KINOFILM A bla bla KINOFILM B blubb blubb KINOFILM C Ich m�chte nun die Datei "Kino.ini" per cat und grep auslesen und testen ob der String KINOFILM nur mit einem '*' am Anfang vorkommt. In dieser Beispieldatei...

6. Shell Programming and Scripting

Read files, lines into array, cat vs open

Hi Everyone, I have a file: a.txt a,b,c,d,6,6,6 1,2,3,d,6,6,6 4,5,6,6,6,6,6 #!/usr/bin/perl use warnings; use strict; my @array = (); ### Load file into array for my $i (split '\n', `cat /tmp/a.txt`) { push @array, ; } It works. But my a.txt have 1million lines, and...

7. Shell Programming and Scripting

PERL : Read an array and write to another array with intial string pattern checks

I have an array and two variables as below, I need to check if $datevar is present in $filename. If so, i need to replace $filename with the values in the array. I need the output inside an ARRAY How can this be done. Any help will be appreciated. Thanks in advance.

8. Shell Programming and Scripting

Bash 3.2 - Array / Regex - IF 3rd member in array ends in 5 digits then do somthing...

Trying to do some control flow parsing based on the index postion of an array member. Here is the pseudo code I am trying to write in (preferably in pure bash) where possible. I am thinking regex with do the trick, but need a little help. pesudo code if == ENDSINFIVEINTS ]]; then do...

9. Shell Programming and Scripting

Bash arrays: rebin/interpolate smaller array to large array

hello, i need a bit of help on how to do this effectively in bash without a lot of extra looping or massive switch/case i have a long array of M elements and a short array of N elements, so M > N always. M is not a multiple of N. for case 1, I want to stretch N to fit M arrayHuge H = (...

LEARN ABOUT ULTRIX

ppmquant

ppmquant(1)						      General Commands Manual						       ppmquant(1)

NAME

       ppmquant - quantize the colors in a portable pixmap down to a specified number

SYNOPSIS

       ppmquant [-floyd|-fs] ncolors [ppmfile]
       ppmquant [-floyd|-fs] [-nofloyd|-nofs] -mapfile mapfile [ppmfile]

       All  options  can  be abbreviated to their shortest unique prefix.  You may use two hyphens instead of one to designate an option.  You may
       use either white space or equals signs between an option name and its value.

DESCRIPTION

       pnmquant is a newer, more general program that is backward compatible with ppmquant.  ppmquant may be faster, though.

       Reads a PPM image as input.  Chooses ncolors colors to best represent the image, maps the existing colors to the new ones, and writes a PPM
       image as output.

       The quantization method is Heckbert's "median cut".

       Alternately, you can skip the color-choosing step by specifying your own set of colors with the -mapfile option.  The mapfile is just a ppm
       file; it can be any shape, all that matters is the colors in it.  For instance, to quantize down to the 8-color	IBM  TTL  color  set,  you
       might use:
	   P3
	   8 1
	   255
	     0	 0   0
	   255	 0   0
	     0 255   0
	     0	 0 255
	   255 255   0
	   255	 0 255
	     0 255 255
	   255 255 255
       If  you	want  to quantize one image to use the colors in another one, just use the second one as the mapfile.  You don't have to reduce it
       down to only one pixel of each color, just use it as is.

       If you use a mapfile, the output image has the same maxval as the mapfile.  Otherwise, the output maxval is the same as the  input  maxval,
       or less in some cases where the quantization process reduces the necessary resolution.

       The  -floyd/-fs	option	enables  a  Floyd-Steinberg error diffusion step.  Floyd-Steinberg gives vastly better results on images where the
       unmodified quantization has banding or other artifacts, especially when going to a small number of colors such as the above IBM set.   How-
       ever, it does take substantially more CPU time, so the default is off.

       -nofloyd/-nofs means not to use the Floyd-Steinberg error diffusion.  This is the default.

REFERENCES

       "Color Image Quantization for Frame Buffer Display" by Paul Heckbert, SIGGRAPH '82 Proceedings, page 297.

SEE ALSO

       pnmquant(1), ppmquantall(1), pnmdepth(1), ppmdither(1), ppm(5)

AUTHOR

       Copyright (C) 1989, 1991 by Jef Poskanzer.

								  12 January 1991						       ppmquant(1)