Anyway to also add a way to ignore the comments that begin with
The same way as RudiC already suggested:
Quote:
Originally Posted by RudiC
by adding sth like [modification by bakunin:]/^#/{next}[mod ends] to the top of the awk script.
The hints we give are supposed to be read, tried out, understood, then modified and applied differently to serve a similar but different purpose. They are NOT MEANT to be followed blindly without thinking. If you are given "do procedure A" as an answer to "how can i achieve A" you should find out how that works and try "do procedure B" first, before asking "how can i achieve B". Chances are it will work if you have understood how A was achieved in first place.
This is my first post!! I really hope this question hasn't been asked a thousand times before(I'll bet it has).
Anyway, here it is. I am new to the UNIX world by the way so forgive my ignorance. OK, whenever I write code on my windows machine and then try to port it over to UNIX I always get... (3 Replies)
Hello Forum,
I am having an odd occurence. When i do a su in a terminal or console session, I am able get authenticated as superuser without using the full or correct root password. Anyone have any idea?
-AJ (4 Replies)
I am using smartFTP client on my windows machine to connect to a linux box of mine (different location) to download some large files 100+meg. The linux box is running vsftp.
After several minutes of downloading, the connection suddenly dies, and I cannot reconnect to the box via FTP using ANY... (7 Replies)
Hi,
I have a strange problem. we're trying to connect an IBM pseries, to a Brocade switch, for SAN acess, using a badged emulex card, (IBM FC6239) WE can configure the device to see the fabric. The only problem we have is that the Brocade sees the HBA as storage, and not as a HBA.
We've zoned... (1 Reply)
I discovered that where 'tr -s' works as expected on grepped input, it appears to completely fail on dig results.
I am not sure if this is because of some sort of non posix compliancy, or what.
Here is what I did:
The command below works as expected, squeezing all repeated spaces to a single... (3 Replies)
Our webserver is running FreeBSD, for the last few days we have been having an issue with our cronjobs/mysql server.
Specifically we have jobs that execute php scripts to do various things to the website. When running these php scripts manually, via external browser, or lynx on the server, they... (8 Replies)
I've been going through a java tutorial, and ran across some strangeness in this small example...
class SqrRoot {
public static void main(String args) {
double num,sroot,rerr,resquare;
for(num = 1.0; num < 100.0; num++) {
sroot = Math.sqrt(num);
... (1 Reply)
All,
I'm baffled by some sort behavior on SunOS 5.10 and looking for guidance.
Running the command:
sort -t'|' -k5,5 -k7,7 -k1,1 -k2,2 -k3,3 -k6,6 -k8,8 test
Against the file "test":
thirdA||||first||second|Data
thirdB||||first||second|
thirdC||||first||second|Data... (11 Replies)
Hi all, I'm trying to use bash to create a basic parser for some text, because basic grep/sed/awk have all my needs covered.
So, I'm creating the chain of grep/sed I need and trying the execute that on the data I gather.
The problem is, it's not working as it does when hardcoded.
e.g.
... (3 Replies)
Discussion started by: beomagi
3 Replies
LEARN ABOUT LINUX
ppmtopgm
ppmtopgm(1) General Commands Manual ppmtopgm(1)NAME
ppmtopgm - convert a portable pixmap into a portable graymap
SYNOPSIS
ppmtopgm [ppmfile]
DESCRIPTION
Reads a portable pixmap as input. Produces a portable graymap as output. The output is a "black and white" rendering of the original
image, as in a black and white photograph. The quantization formula used is .299 r + .587 g + .114 b.
Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any ppm program can
read pgm (and pbm ) files automatically. pgmtoppm is for colorizing a pgm file. Also, see ppmtorgb3 for a different way of converting
color to gray. And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate the original
colors, not necessarily a way that looks like a black and white photograph.
QUOTE
Cold-hearted orb that rules the night
Removes the colors from our sight
Red is gray, and yellow white
But we decide which is right
And which is a quantization error.
SEE ALSO pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5)AUTHOR
Copyright (C) 1989 by Jef Poskanzer.
10 April 2000 ppmtopgm(1)