Hi, i have a file which content the following:
>cat cols
data a:23:data
data b:76:data
data c:-30:data
i would like to sum up the value of column 2, but the result that return to me is 0. Can anyone help?
i'm using this code to do the sum
awk -F" " 'BEGIN {x=0} {x+=$2} END {print... (5 Replies)
The file content is dynamic and using this format:
name1 number1
name2 number2
name3 number3
name4 number4
....................
Need a smooth way to calculate the sum of all the numbers in that file (number1 + number2 + number3 + number4........ = total ) (11 Replies)
Good afternoon! Im new at scripting and Im trying to write a script to
calculate total space, total used space and total free space in filesystem names matching a keyword (in this one we will use keyword virginia). Please dont be mean or harsh, like I said Im new and trying my best. Scripting... (4 Replies)
Hi,
Just wondering, is there anyway I can get the total of logs generated by hours ? Let say I have these logs,
Sep 23 04:48:43 hsbcufs: NOTICE: realloccg /: file system full
Sep 23 04:48:47 hsbcufs: NOTICE: alloc: /: file system full
Sep 23 04:48:51 hsbcufs: NOTICE: realloccg /: file... (14 Replies)
HI
I have a file
# cat marks.txt
MARKS LIST
2013
Name english french chinese latin total_marks
wer 34 45 67 23
wqa 12 39 10 56
wsy 23 90 23 78
Now i need to find the total marks of each student using... (11 Replies)
Hi All ,
I have the following script as below , I tried to modify to meet the requirement , could someone help ? very thanks
================================================================================================
while read STR NAME; do
Total=0
MyString="$STR"
GetData () {... (18 Replies)
Hi
I am having a set of files which will have the card details and the amount that was spending on the card. Each file will have the set of cards and dollar amount spend on it. I am trying to sum the dollar values by card number on each files. Is there a way I do it all in all one steps
File... (1 Reply)
Discussion started by: arunkumar_mca
1 Replies
LEARN ABOUT OSX
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)