So I'm making a page for one of my web sites that scans the visitors ports (just a few specific ones, not ALL) and tells them if they have any open. Now I made up the code and it worked great. Now instead of having the same chunk of code all over my script, I tried to make my own subroutine so I... (10 Replies)
Hi,
i am trying to write script which will delete files(more than 90 days older) from different directories. Please check its ok if i implement it in SUN solaris10; One important thing i used here "exec" flag. I heard from someone- as i have lots of files "exec" flag may give error like too... (2 Replies)
Below is my menu options code. It allows user to pick one of two option. I can get the first option to work, because if it is selected it just "breaks" and carries on with the script.
What i want to know is if a user selects option two how do i get that option to ignore all the other script and... (3 Replies)
I am seeking help on one UNIX function writting. Please help.
I have a large file, named 'MyFile', It was tab-delmited. I am told that each line in 'MyFile' has 7 columns, and that the values in the 5th column are integers. How do I use shell functions (and standard LINUX/UNIX filters) to verify... (1 Reply)
I am seeking help on this UNIX function, please help. Thanks in advance.
I have a large file, named as 'MyFile'. It was tab-delmited, I am told that each record in column 1 is unique. How would I verify this with UNIX function or command? (1 Reply)
I re-post my question to seek your help and critique. I was required to verify a very large and tab-delimited file, named 'MyFile'.
1. The each line in 'MyFile' has 7 columns, and that the values in the 5th column are integers. I need to use shell functions (and standard LINUX/UNIX filters) to... (1 Reply)
Hi to all,
I have an AWK code that looks like this:
awk 'NR==FNR
{
#code to process file1
next
}
{
#code to process file2
a=myfunction(x)
}
END {
#Some code
b=myfunction(x)
... (3 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
I need help moving working code into library function called obj13-lib.pl and call the same function in obj13-2.pl
I am a Linux newbie and this certificate is my first step... (0 Replies)
How to return a exit code from a function and use it in conditional?
I tried the following but it does not seem to work.
tests.sh:
if test ./load.sh ; then
echo "0"
else
echo "1"
fi
load.sh:
return 1;
from command line:
$ ./tests.sh
0
I was expecting it to output "1"... (17 Replies)
Discussion started by: wolfv
17 Replies
LEARN ABOUT DEBIAN
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)