The requirement is to extract 9 fields randomly from a 13 field CSV file to make another CSV file. While doing that, the field 7 and 8 of input csv file should comeout as field 7 of output with the value as first charecters of both 7 and 8 fields of input file(CSV file).
Presently I am using... (1 Reply)
Hello All,
i have two files, one of the format
A 123
B 124
C 234
D 345
And the other
A 678
B 789
C 689
D 567
I would like to combine them into one file with three columns:
A 123 678
B 124 789
C 234 689 (4 Replies)
Hi,
I need to generate all combinations upto n-1 level,
if the input file looks like say,
A
B
C
D
.
.
....
I need to generate all combinations such that first value remains constant and the remaning are combined with all possible ways.
Output
A
AB
AC
AD
ABC (1 Reply)
HI I have a series(sorted), which i require to create combinations. I am not getting the good code for doing this. My series should generate the following combinations... Please help me in getting this in C++. Thanks for your help.
A:
A
A B:
A
B
A B
A B C:
A
... (1 Reply)
Hi Team
when i do, echo on my host box it returns (see below)
# echo $PS1
\$
I need to set a color comination of my own
for \u means for user : red
for \h means for hostname: blue
for \W means present working directory: pink
for $ means for wht prompt : yellow
Do i need to... (1 Reply)
Hello Scrutinizer / Group ,
The shell script of awk that Scrutinizer made calculate all possible permutations in this case 3125 (5 numbers) but i want to have only the 126 possible combination. For now it does not matter the specific order of the combination numbers.
I would appreciate it you... (1 Reply)
How can I get all combinations of 5 words from 10 words.
For example I have 3 words and I want to get all combinations of 2 words.
"A", "B", "C" it would like AB, BC, AC.
Maybe you know some usefull code or example.
Thanx a lot.
P.S. Sorry if I'm not right enough cause I don't know English... (2 Replies)
Post #2 is the original post. This is the first answer to post #2
Hi, try:
awk '
{
match($0,/1+/)
b=substr($0,1,RSTART-1)
e=substr($0,RSTART+RLENGTH,length)
for(i=2^RLENGTH-2; i>0; i--) {
s=x; d=i
while(d) {
s=(d%2==0?0:1) s
... (12 Replies)
hello,
I'm reading this thread, in which there is this code :awk '
function comb(v,i) {
for(i in A) {
delete A;
if(length(A))
comb((v?v"+":x)i)
else print v"+"i
A;
}
}
{ A }
END {
comb();
} ' infilebut I can't understand where does v come... (5 Replies)
Discussion started by: daPeach
5 Replies
LEARN ABOUT LINUX
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)