I need to use tip from machine A serial port to machine B serial port. Can someone point me to an example of the correct cable to use?
Thanks. (1 Reply)
I am about to do a script that change the COST so i dont need to change each cost.
The output looks like this.
"OL_ID OL_LINK_COST
----------- ------------
51 10
52 10
53 10
54 10
55 ... (3 Replies)
Hello,
I'm just starting working on it. I'd like to get a tip
For istance if I have a file like:
a b c
d e f
....
and I wanna get:
1a & 2b & 3c
0d & 8e & 4f
.....
I would like to use sed and come up with a regular expression that works.... (3 Replies)
A couple of times there was the question: in a directory hierarchy how to display the deepest directories only.
For example in Help with listing only subfolders.
My hot solution at that time was (in short)
find . -depth -type d | awk -F / 'NF>=p; {p=NF}'
But another article has opened my eyes... (6 Replies)
Often it has been said that echo is neither portable nor correct.
Here is an input.txt:
line1
line2
-n
line4
-en
line6
-x
line8
Then the following fails with BSD/Linux/bash:
while IFS= read line
do
echo "$line"
done < input.txt
It is elegantly improved by means of an echo... (2 Replies)
Dear members, moderators and others.
While working on <insert project>, a need has surfaced to watch a directory, and when a file comes, to do appropriate action.
So, i started writing some shell code, aware of linux inotify-tools package with inotifywait.
Also, i'm seeing a lot of similar... (1 Reply)
Discussion started by: Peasant
1 Replies
LEARN ABOUT LINUX
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)