Thanks, i have another question:
how do i combine "awk 'int($2) > 90 ' a", with "sub {/c/, d}", and "sub {/ /, /\t/}"
means from the output of "c 90%", to "d 90%".
Hi I'm new to this forum and I'm a beginner when it comes to shell and awk programming. But I have the following problem:
I have 5 csv files (data1.csv, data2.csv, etc.) and need to calculate the average between the total sum of the 1st and 7 column.
csv example:... (3 Replies)
context:
while reading tutorial on the read command, one of the first examples, demonstrating its use, follows as such:
$ x=abc ; printf "x is now '%s'. Enter new value: " $x ; read x
generating this output:
x is now 'abc'. Enter new value:
first, what does %s represent? I know... (3 Replies)
I have following data in a file a.txt
HELLO123456789
HELLO098765432
HELLO322366565
HELLO2343435
HELLO45343
I have to filter those lines whose length is not equal to 14 using awk.
Thanks in advance:b: (1 Reply)
My task is that when the user calls the script
1. If user calls script with
awk -v dtmax= -v stdlim= -f ../Scripts/add-rgauss-xt.awk fin.xt > fout.xt
rgauss will return mean + (stdlim * sigma)
2. If user calls script with
awk -v dtmax= -f ../Scripts/add-rgauss-xt.awk fin.xt > fout.xt... (4 Replies)
I have a file that looks like this, with the first number in each block within each SOURCE declaration being a distance.
%( PHASES
P
%)
%( SOURCES
(10,0.0)
(13,0.0)
(16,0.0)
(19,0.0)
(22,0.0)
(25,0.0)
(28,0.0)
(31,0.0)
(34,0.0)
(37,0.0) (0 Replies)
Hi,
I need to check whether a particular file exists ot not using awk.
Can anyone help me please?
For Example:script that i am using:
awk '{filename =$NF;
rc=(system("test -r filename")) print $rc;}' "$1"
is not working.
Here I am passing a text file as input whose last word contains a... (6 Replies)
Hello, I am working with some very large files (upwards of 1M records). I have written code to parse out a lot of the data and am using awk rather than a built-in "while read LINE" for performance (I have tested both ways). That said, I now need to read each of these incoming lines, check the ninth... (2 Replies)
Trying to use awk to print the lines in file that have either REF or SNV in $3, add a header line, sort by $4 in numerical order. The below code does that already, but where I am stuck is on the last part where the total lines are counted and printed under Total_Targets, under Targets_less_than is... (4 Replies)
Discussion started by: cmccabe
4 Replies
LEARN ABOUT REDHAT
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)