I received a warning when I tried to compile my program that said:
warning: comparison between pointer and integer
Could you please explain to me what this means, and in what ways I could possibly fix this?
Thanks for your help! (2 Replies)
I have search the forum for an easier way to write this code. I have two separate 'if' to do this and it works but am wondering if someone knows a quick way to combine them. I want anything between 1 and 100 but not '01' or '005', '0010', etc.
if ) ]] ||
]; then
echo "Try... (3 Replies)
Hi,
I am trying to use a regular exp to match any number between 0 and 7 except 2......
I am using:
echo $myvar | egrep "{1}{1}"
Which isnt working....
Please can someone help?
Thanks
yonderboy (10 Replies)
Hi,
I am just trying to compare integer in ksh. can you please tell me what's wrong with this code... or give me suggestions on alternative.
sample code:
i=0;
if ; then
echo inside if
fi
Thanks in advance! (6 Replies)
hello,
i am writing a script that takes the UID from the PASSWD and then i want
to increse the Number by one. for the Next user.
i cannot get this to work that a variable is as interger
example:
set i = 0
set $i = $+1
it's in tcsh if it's mather (10 Replies)
Hi guys :D
I am still playing with my C handbook and yes, as you can see I have small problem as always :cool:
I wrote a C code
#include <stdio.h> #define MESSAGE 100 int main(void) { char input_mes - Pastebin.com
And when I try to compile it I get following errors from gcc
... (1 Reply)
I'm trying to write a programme which scans strings to find how many vowels they contain. I get an error saying that I'm trying to compare a pointer and an integer inif(*v == scanme){. How can I overcome this ? Also, the programme seems to scan only the first word of a string e.g.: if I type "abc... (1 Reply)
I am trying to execute something like this
file=/tmp/test.txt
firstline=$(head -n 1 $file)
value=`echo $firstline | cut -d'=' -f2`
if
then
echo true
fi
i read the first line of a file, cut to the numeric value in the first line and check if it greater than 2
but for some... (11 Replies)
Discussion started by: madhan_dc
11 Replies
LEARN ABOUT V7
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)