Hi Guys and Girls
I'm having trouble outputing from a sorted file... i have a looooong list of PVIDs and need to only output only those which occur 4 times!! Any suggestions?
ie I need to uniq (but not uniq (i've been through the man pg) this:
cat /tmp/disk.out|awk '{print $3}' |grep -v... (6 Replies)
I have following file content (3 fields each line):
23 888 10.0.0.1
dfh 787 10.0.0.2
dssf dgfas 10.0.0.3
dsgas dg 10.0.0.4
df dasa 10.0.0.5
df dag 10.0.0.5
dfd dfdas 10.0.0.5
dfd dfd 10.0.0.6
daf nfd 10.0.0.6
...
as can be seen, that the third field is ip address and sorted. but... (3 Replies)
Hi all,
I have a tab-delimited file and want to remove identical lines, i.e. all of line 1,2,4 because the columns are the same as the columns in other lines. Any input is appreciated.
abc gi4597 9997 cgcgtgcg $%^&*()()*
abc gi4597 9997 cgcgtgcg $%^&*()()*
ttt ... (1 Reply)
Hi All,
I am trying to remove the duplicate entries in a file and print them just once. For example, if my input file has:
00:44,37,67,56,15,12
00:44,34,67,56,15,12
00:44,58,67,56,15,12
00:44,35,67,56,15,12
00:59,37,67,56,15,12
00:59,34,67,56,15,12
00:59,35,67,56,15,12... (7 Replies)
Hi,
I have a file that looks like this:
a_X data
a_Y data
b data
c data
d_X data
d_Y data
I **want** to duplicate the lines without the _X and _Ys. In other words, I want it to look like this
a_X data
a_Y data
b data
b data
c data
c data
d_X data
d_Y data (13 Replies)
Hi, I have a huge file which is about 50GB. There are many lines. The file format likes
21 rs885550 0 9887804 C C T C C C C C C C
21 rs210498 0 9928860 0 0 C C 0 0 0 0 0 0
21 rs303304 0 9941889 A A A A A A A A A A
22 rs303304 0 9941890 0 A A A A A A A A A
The question is that there are a few... (4 Replies)
Hi All,
I have a very huge file (4GB) which has duplicate lines. I want to delete duplicate lines leaving unique lines. Sort, uniq, awk '!x++' are not working as its running out of buffer space.
I dont know if this works : I want to read each line of the File in a For Loop, and want to... (16 Replies)
Hello,
I'm trying to write an script that in a txt with lines with 2 or more columns separated by commas, like
hello, one, two
bye, goal
first, second, third, fourth
hard, difficult.strong, word.line
will create another in which if a line has more than 2 columns, it will have another... (4 Replies)
Hello,
I am trying to eliminate lines where column #1 is duplicated. If it is a duplicate, the line with the greater value in column #2 should be deleted:
file.dat
123 45.34
345 67.22
949 36.55
123 94.23
888 22.33
345 32.56
Desired ouput
123 45.34
949 36.55
888 22.33
345 32.56... (4 Replies)
Dear All,
I have a two-column data file and want to duplicate data in second column w.r.t. first column.
My file looks like:
2 5.672
1 3.593
3 8.260
...
And the desired format:
5.672
5.672
3.593
8.260
8.260
8.260
...
How may I do so please? I appreciate any help you may... (2 Replies)
Discussion started by: sxiong
2 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)