If I have a file like this, could anyone please guide me how to find the average value in each metrix. The file has got about 130,000 metrixs.
Grid-ref= 142, 235
178 182 203 240 273 295 289 293 283 262 201 176
167 187 187 246 260 282 299 312 293 276 230 191
169 ... (2 Replies)
I have input file like below.
I00789524 0213 5212
D00789524 0213 5212
I00778787 2154 5412
The first two records are same(Duplicates) except I & D in the first character. I want non duplicates(ie. 3rd line) to be output. How can we get this . Can you help. Is there any single AWK or SED... (3 Replies)
Hi I want to use awk to print avg and st deviation but it does not go into a file for column 1 only.
I can do average and # of records but i cannot get st deviation.
awk '{sum+=$1} END { print "Average = ",sum/NR}'
thanks (1 Reply)
Masters,
I have a text file in the following format.
vrsonlviee RVEBAALSKE
lyolzteglx UUOSIWMDLR
pcybtapfee DKGFJBHBJO
ozhrucfeau YQXATYMGJD
cjwvjolrcv YDHALRYQTG
mdukphspbc CQZRIOWEUB
nbiqomzsgw DYSUBQSSPZ
xovgvkneav HJFQQYBLAF
boyyzdmzka BVTVUDHSCR
vrsonlviee TGTKUCUYMA... (2 Replies)
Can some one provide me a shell script.
I have file with many columns and many rows. need to sort the first column and then remove the duplicates records if exists.. finally print the full data with first coulm as unique.
Sort BASED ON FIRST FIELD and remove the duplicates if exists... (2 Replies)
Hi,
How to eliminate the duplicate values in unix? I have a excel file which contains duplicate values.
Need to use this in a script.
Thanks in advance. (3 Replies)
Is it possible to print the average of 2 nd column based on a key in 1st col
input
a1X 4
a1X 6
a2_1 10
a2_1 20
a2_1 30
a2_1 30
a2_1 10
output
a1X 5
a2_1 20 (11 Replies)
Discussion started by: quincyjones
11 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)