01-02-2012
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi,
I recently joined this forum and new to UNIX.
Is there any difference between UNIX operating system and UNIX open server? Please explain. (1 Reply)
Discussion started by: Manjit
1 Replies
2. UNIX for Dummies Questions & Answers
Ok, I'm confused.
Can someone answer these (stupid) questions please for me?
1. What is the difference between unix and linux?
2. Is FreeBSD a unix distribution?
3. If not, then what is Unix? I actually gone to Unix.com because I thought this is it's official website where I could download... (1 Reply)
Discussion started by: RellioN
1 Replies
3. UNIX for Dummies Questions & Answers
OK, I've used various versions of UNIX(Solaris, HPUX, etc..) over the years. Now the organization I work for is leaning towards more Linux based systems(Redhat, Suse, etc..)
I do see differences in in comands and how to accomplish basic adminstration, but nothing mind blowing.
So, what is it... (5 Replies)
Discussion started by: pbonilla
5 Replies
4. UNIX for Dummies Questions & Answers
Hi,
What is the difference between the following unix ie.. Linux-unix, HP-Unix, AIX, Solaris Unix... whether commands used in all unix are same? and which one is best?..... (2 Replies)
Discussion started by: gwgreen1
2 Replies
5. Solaris
Hi,
Please explain difference between unix and genunix files in solaris.
Thanks in advance (4 Replies)
Discussion started by: bpsunadm
4 Replies
6. UNIX for Dummies Questions & Answers
I need the get the difference between 2 files and the result, I need to output it to an other file
file1
1
1
2
file2
1
1
2
3
Result....File3=3
used diff file1 file2 > file3 ( not working as expected)..Exact requirement..I have 2 flatfiles to compare and load only the difference in a... (17 Replies)
Discussion started by: win4luv
17 Replies
7. UNIX for Dummies Questions & Answers
Hi all,
can anyone share any URl or link which is about the main 20 advantages and features of unix over windows i mean i need camparison matrix between windows and any flavour of unix. thanks a lot in advance for sharing.
Best Regards (4 Replies)
Discussion started by: younusdba
4 Replies
8. UNIX for Dummies Questions & Answers
Hi I am new to linux
I have dout waht is the difference between UNIX and LINUX
Is there any soft for insatallation for UNIX OS
Thanks (0 Replies)
Discussion started by: sanjaya
0 Replies
9. UNIX for Beginners Questions & Answers
I have two file as given below which shows the ACL permissions of each file. I need to compare the source file with target file and list down the difference as specified below in required output. Can someone help me on this ?
Source File
*************
# file: /local/test_1
# owner: own
#... (4 Replies)
Discussion started by: sarathy_a35
4 Replies
LEARN ABOUT ULTRIX
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)