Hi Friends
How to do sum on a column?
I have a file like:
FRED 500.01 TX
SMITH 50.10 NY
HARRY 5.00 CA
555.11
Sum on second column.
I am trying using nawk like
nawk 'BEGIN {FS="|"}; {printf $1"+"}'
Thanks a lot for your help
S :) (2 Replies)
I have a text file with two columns
the first column is an integer and the second column is date
how do i sum up the first column according to the date
example
123 jan1
232 jan1
473 jan2
467 jan2
356 jan3
376 jan3
my result should be
355 jan1
940 jan2
732 jan3
how do i... (2 Replies)
Dear all,
I have a rather large file of numbers which i would like to read into a script and then do some maths on a specific column( e.g column).
so far i have been using the following awk command
awk '{print $4}' infile.txt > out.tmp to strip out the desired column within the in perl... (3 Replies)
I have a file which contains data as below:
-----------------------------------------------------------------------------------------------
GSPWeb Statistics for the period of last 20 days... (3 Replies)
Hi,
I am writing a comparator script, which comapre two txt files(column by column)
below are the precondition of this comparator
1)columns of file are not seperated
Ex.
file1.txt
8888812341181892
1243548895685687
8945896789897789
1111111111111111
file2.txt
9578956789567897... (2 Replies)
Dear all,
I have one file like
LABEL A B C D E F G H I J K L M N
G02100 64651.3 25630.7 8225.21 51238 267324 268005 234001 52410.9 18598.2 10611 10754.7 122535 267170 36631.4
G02100 12030.3 8260.15 8569.91 ... (4 Replies)
a,b,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,aa,bb,cc,dd,ee,ff,gg,hh,ii
a thru ii are digits and strings....
The awk needed....if coloumn 9 == i (coloumn 9 is string ), output the sum of x's(coloumn 22 ) in all records and sum of y's (coloumn 23 ) in all records in a file (records.txt).... (6 Replies)
hi All,
i have a file in which only one column is there.,
test.txt
======
-900.01
-900.02
-900.03
-900.04
-900.05
-900.06
-900.07
-900.08
-900.09
900.01
900.02
900.03
900.04
900.05 (4 Replies)
Hello,
I am facing issue in summing up a column in unix.I am displaying a column sum up to 4 decimal places and below is the code snippet
sed '1d' abc.csv | cut -d',' -f7 | awk '{s+=$1}END{ printf("%.4f\n",s)}'
-170552450514.8603
example of data values in the column(not... (3 Replies)
Discussion started by: karthik adiga
3 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)