8 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Dear community,
I am trying for several hours now to create an egrep command to grep the number of lines containing a specific text from a text-file but seem to have an error somewhere.
The Textfile contains several thousand lines and has the expression "Lastname" in several lines.... (3 Replies)
Discussion started by: Donzo
3 Replies
2. Windows & DOS: Issues & Discussions
Hi All,
This command works when I type it on but when I run the batch file it doesn't..any ideas why?
attrib.exe * | find /c /v "" >filecount.txt (1 Reply)
Discussion started by: Grueben
1 Replies
3. Shell Programming and Scripting
Hi,
I am using SunOS
I want to serch my previous command
from unix prompt
(like on AIX we can search by ESC -k)
how to get in SunOs
urgent help require. (10 Replies)
Discussion started by: RahulJoshi
10 Replies
4. Shell Programming and Scripting
How would I go about writing a 'Mad Libs' type program using Ruby?
Any examples would be greatly appreciated.
Thanks! (0 Replies)
Discussion started by: greeky
0 Replies
5. UNIX for Dummies Questions & Answers
Hello,
I wanted to compress a directory which I did with:
tar -czvf backup15062007.tar.gz backup15062007/
I knew that you could specify the compression level with gzip so I then did:
gzip -cvf9 backup15062007.tar.gz backup15062007compress.tar.gz
Now I know this probably won't... (5 Replies)
Discussion started by: patwa
5 Replies
6. UNIX for Dummies Questions & Answers
I've noticed most of my postings here are because of syntax errors.
So I want to begin compiling a large txt file that contains all the "man <cmd>" of the commands I most have problems with. I ran a "man nawk >> nawk.txt" but it included a header/footer on each "page". Anyone know how I'd be... (6 Replies)
Discussion started by: yongho
6 Replies
7. Shell Programming and Scripting
Hi all,
I have been writing a script to automate some work for myself and have come accross a problem. I cannot understand why it doesn't work, but then I am new to both Unix and Korn shell hacking! Here is the problem:
I want to interogate a file for a number and store that number in... (6 Replies)
Discussion started by: alarmcall
6 Replies
8. HP-UX
Greetings, and thanks for having such an interesting forum!
I currently have 3 Intel boxes running 2000, and two HP boxes running HP-UX 10.20. I am very inexperienced with the Unix/Linux world. I have several problems, mainly in getting them all networked together. I am constrained to keep a... (3 Replies)
Discussion started by: Menace
3 Replies
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)