I am reading a file that contains over 5000 lines and I want to assign it to a shell variable array (which has a restriction of 1024 rows). I had an idea that if I could grab 1000 record hunks of the file, and pipe the records out, that I could perform a loop until I got to the end and process 1000... (5 Replies)
hello, hope you can help me:
ive got a file called archivos
The content or structure of this file is
./chu0/filechu
./chu1/filechu
I extract each line from this file manually and redirect to a file, and it Works fine, so the command line is:
awk ‘/chu0/ {print $0}' < archivos >... (8 Replies)
I have two files
file A which have a number in every row and file B which contains few hundred thousand rows with about 300 characters in each row (csv)
What I need is to extract whole rows from B file (only these which numbers are indicated in A file)
I also need to use cygwin.
Any... (7 Replies)
This is the sample input file
b 05/Jul/2010:07:00:10
a 05/Jul/2010:06:00:10
b 05/Jul/2010:07:00:10
c 05/Jul/2010:07:10:10
d 05/Jul/2010:08:00:10
e 05/Jul/2010:09:00:10
f 05/Jul/2010:10:00:10
h 05/Jul/2010:11:00:10
i 05/Jul/2010:12:00:10
j ... (9 Replies)
hi,
i have two files.
file1.sh
echo "unix"
echo "linux"
file2.sh
echo "unix linux forums"
now the output i need is
$./file2.sh
unix linux forums (3 Replies)
Hi guys
I have a several thousands line file in the following format:
n817
--------------------------------------------------
n842
--------------------------------------------------
n877
--------------------------------------------------
n513
/bb/data/rmt2db.lrl:JBSKDB 31915 75... (4 Replies)
Hi All,
I am trying to get some lines from a file i did it with while-do-loop. since the files are huge it is taking much time. now i want to make it faster.
The requirement is the file will be having 1 million lines.
The format is like below.
##transaction, , , ,blah, blah... (38 Replies)
Hi all;
Here is my file which contains a list of files (recent versions of files are in red). This file is dynamic, files versions can change at any time (versions can increment)
filename
-------------------------------------------------------
... (8 Replies)
Dears experts
i have UNIX file that contain 4 million lines , i need to extract all lines that have entiries saved in VI file , i have below comand but it takes tooooo long time :
for i in `cat file1.csv`; do cat dump | grep -i $i >> file2.csv; done
where :
file1.csv = VI file that... (12 Replies)
Discussion started by: is2_egypt
12 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)