how do you print the lines before and after the line you are interested in? Example: Line to be printed: line 344
Output:
line 343
line 344
line 345
Thanks (1 Reply)
Hi All,
I have a file with only one column and i need to subtract the adjacent lines of the same column and print it in the same column.
For Example:
(Input)
Col1
5
10
12
6
9
12
5
.
.
.
.output should be like this: (12 Replies)
Hi all,
I have a text file consisting of 4 columns. What I am trying to do is see whether column 2 repeats multiple times, and collapse those repeats into one row. For example, here is a snippet of the file I am trying to analyze:
1 Gamble_Win 14.282 0.502
1 Sure_Thing 14.858 0.174
1... (4 Replies)
Hey guys, maybe you can help me with this...
I want to read input.dat line by line, while doing a simple calculation between the second column value of the current line and the second column value of the next line (like a difference).
input is something like this:
0 3.945757
1 ... (1 Reply)
Hi All,
I'm looking to use AWK to pattern match lines in XML file - Example patten for below sample would be /^<apple>/
The sample I wrote out is very basic compared to what I am actually working with but it will get me started
I would like to keep the matched line(s) unchanged but have them... (4 Replies)
Hi Folks,
I have two arrays
a:
aaa bbb ccc ddd
ddd aaa bbb ccc
ddd ccc aaa bbb
b:
aaa bbb ccc
aaa ccc bbb
bbb aaa ccc
ccc bbb aaa
I want to compare row by row a(c1:c4) to b(c1:c3). If elements of 'b' match... (5 Replies)
Hi,
I have a file with contents.
file1:
<2013 tttaaa
abc123
<2013 gggdddd
<2013 sssssss
<2013 eeeee
I need to remove the lines which do not have the word "tttaaa"
can some one help ? (7 Replies)
Hi,
I have a quick question on parsing the hour/minute and value from a text file and remove the seconds portion. For example in the below text file:
20:26:01 95.83
20:27:01 96.06
20:28:01 95.99
20:29:01 7.11
20:30:01 5.16
20:31:01 8.27
20:32:02 9.79
20:33:01 11.27
20:34:01 7.83... (2 Replies)
Given this file (I separated them in block to make my explanation clearer):
92157768877;Sof_deme_Fort_Email_am_%yyyy%%mm%%dd%;EMAIL;20/02/2015;1;0;0
92157768877;Sof_trav_Fort_Email_am_%yyyy%%mm%%dd%;EMAIL;20/02/2015;1;0;0
91231838895;Sof_deme_faible_Email_am;EMAIL;26/01/2015;1 0;0... (1 Reply)
What is the correct syntax to have the awk parse the next line as well? The next in bold is where I think it should go, but I wanted to ask the experts since I am a beginner. The file to be parsed is attached as well. Thank you :).
awk 'NR==2 {split($2,a,"");b=substr(a,1,length(a-1));print... (6 Replies)
Discussion started by: cmccabe
6 Replies
LEARN ABOUT OSF1
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)