01-24-2009
And by the way,
why the hangup about GOTO?
It is of course up to the programmer to construct legible and functional code, and for a small program or asm it is very useful. AND can be very readable too. Of course it is silly to use GOTO in a large program where it's hard to keep track of the state of things. But everything's not black and white.
/Lakris
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi,
When working in vi, the CTRL+j command for merging lines is very convenient. Is there an equivalent for splitting them (inserting a line break)? I often find myself pressing "i" + "return" + "esc", which I find a bit lengthy.
Thanks in advance! (3 Replies)
Discussion started by: Skogsmulle
3 Replies
2. Shell Programming and Scripting
is it possible? because i still need to keep on reading even though i don't want to read that particular line (7 Replies)
Discussion started by: finalight
7 Replies
3. UNIX for Dummies Questions & Answers
find . "(" -name a.out -o -name core ")" -exec rm {} \;
Specifically
What files are trying to be found
What does the -o do in this command
What is the result if the files are found
What does the command do if the files are not found
What does the . after the word find mean
thanks in... (1 Reply)
Discussion started by: knp808
1 Replies
4. Solaris
Hi Gurus
I would like to know whether break command always work well means take the system to ok> prompt. Its depend upon sever model also. As I am facing problem when ever my system ( Sunfire V890 ) having Solaris 10 OS & oracle RAC on it goes to hang state then I run the break command from... (6 Replies)
Discussion started by: girish.batra
6 Replies
5. Shell Programming and Scripting
Greetings.
cat $name$telephonenumber >> telephonebook.txtI would like to break cat with the command 'break'. Pretty hard to understand huh? So to clarify it:
echo "If you want to stop adding datas to your telephonebook please type 'break'
if #this part is probably not good
then
echo... (2 Replies)
Discussion started by: buddhist
2 Replies
6. Shell Programming and Scripting
hi guys
I am working on a menu for linux... some basic stuff.
but I have an issue. I got 1 server where something is working and the same thing does not work in the same way in another linux box
Basically I am simulating a command line where user insert some commands and to end and go back... (7 Replies)
Discussion started by: karlochacon
7 Replies
7. Shell Programming and Scripting
...when the lines use both a colon and commas to separate the parts you want read as information.
The first version of this script used cut and other non-Bash-builtins, frequently, which made it nice and zippy with little more than average processor load in GNOME Terminal but, predictably, slow... (2 Replies)
Discussion started by: SilversleevesX
2 Replies
8. Shell Programming and Scripting
Hello everyone!
I'm trying to make the below file1 look like file2, can anyone help?
Basically I just hit backspace on every line that starts with a number.
Thanks!
file1:
THIS#IS-IT1
4
THIS#IS-IT2
3
THIS#IS-IT3
2
THIS#IS-IT4
1
Result > file2: (4 Replies)
Discussion started by: demmel
4 Replies
9. Solaris
Hi
I have A Sun Ultra Enterprise 450 server, it has Solaris installed on it.
I have A serial terminal hooked up to it (nullmodem cable plugged into serial port 1 on the box, and the other end plugged into the serial port of A laptop (NEC Versa M300))
The laptop is running Ubuntu 12.04.2... (3 Replies)
Discussion started by: SomeoneTwo
3 Replies
10. Shell Programming and Scripting
in my python script i have loop like below:
for item in itemlist:
if <condition>:
<code>
else:
<code>
if <condition>:
if <condition>:
<code>
else:
for type in types:
if... (1 Reply)
Discussion started by: ctrld
1 Replies
LEARN ABOUT PLAN9
pnmhistmap
pnmhistmap(1) General Commands Manual pnmhistmap(1)
NAME
pnmhistmap - draw a histogram for a PGM or PPM file
SYNOPSIS
pnmhistmap [-black] [-white] [-max N] [-verbose] [pnmfile]
DESCRIPTION
Reads a portable anymap as input, although bitmap (PBM) input produces an error message and no image. Produces an image showing a his-
togram of the color (or gray) values in the input. A graymap (PGM) input produces a bitmap output. A pixmap (PPM) input produces pixmap
output with three overlaid histograms: a red one for the red input, a green one for the green input, and a blue one for the blue input.
The output is fixed in size: 256 pixels wide by 200 pixels high.
OPTIONS
-black Ignores the count of black pixels when scaling the histogram.
-white Ignores the count of white pixels when scaling the histogram.
The -black and -white options, which can be used seperately or together, are useful for images with a large percentage of pixels whose
value is zero or 255, which can cause the remaining histogram data to become unreadbaly small. Note that, for pixmap inputs, these options
apply to all colors; if, for example, the input has a large number of bright-red areas, you will probably want to use the -white option.
-max N Force the scaling of the histogram to use N as the largest-count value. This is useful for inputs with a large percentage of sin-
gle-color pixels which are not black or white.
-verbose
Report the progress of making the histogram, including the largest-count value used to scale the output.
All flags can be abbreviated to their shortest unique prefix.
BUGS
Assumes maxval is always 255. Images with a smaller maxval will only use the lower-value side of the histogram. This can be overcome
either by piping the input through "pnmdepth 255" or by cutting and scaling the lower-value side of the histogram. Neither is a particu-
larly elegant solution.
Should allow the output size to be specified.
SEE ALSO
pgmhist(1), ppmhist(1), pgm(5), ppm(5)
AUTHOR
Wilson H. Bent. Jr. (whb@usc.edu).
25 October 1993 pnmhistmap(1)