Hi,
using Shell to do some file manipulation here.
I need the output to be thrown into three or x files based on the unique values on first column
I am trying to to take unique values from the first column using cut -d , :f1 | sort | uniq to create a list of files and using the below code to populate the output files.
But it is taking so long time. Cut itself taking 7mins as the input file is huge.
Please suggest any other approach which can improve the turnaround time.
Hello,
I have two files that have delimited entries as shown below. I would like to use either Perl or Shell script to extract all the rows in File 1 corresponding to values in File 2 and output it to another File.
File 1
-------
1 36 24 Object1
2 45 36 Object2
3 96 ... (1 Reply)
Hi
I have 2 files:-
1. List of files which consists of names of some output files.
2. A delimited file; delimted by "|"
I want to replace the value of the $23 (23rd column) in the delimited file with name in the first file. It is always position to position. Meaning first row of the first... (5 Replies)
I have a file in which I want to do multiple find and replace of strings. For a single replace I can implement:
sed -i 's/old/new/' <input_file>
I have a second file that contains the old and the new values like the arbitrary example below:
old new
xyz pqr
ab 756
rst pqr... (3 Replies)
Hello,
I have two files as shown below:
test1
678
679
689
690
710
test2
1 678
654 800
676 791
689 900
I want to get a count of lines from test2 whose columns bound the values in test1
I tried running the code below; however am getting wrong results. (3 Replies)
Hi,
I am looking for an awk script which should help me to meet the following requirement:
File1 has records in following format
INF: FAILEd RECORD AB1234
INF: FAILEd RECORD PQ1145
INF: FAILEd RECORD AB3215
INF: FAILEd RECORD AB6114
............................ (2 Replies)
Hi all,
I have a file (say file.txt) which contains comma-separated rows. Each row has seven columns. Only column 4 or 5 (not both) can have empty values like "" in each line.
Sample lines
So, now i want all the rows that have column 4 as "" go in file1.txt and all the rows that have column... (8 Replies)
Hi,
I have a tab delimited text file with three different columns. I want to add an extra column to the text file. The extra column will be the second column and it will equal third column - 1. How do I go about doing that? Thanks!
Input:
chr1 788822 rs11240777
chr1 1008567 rs9442372... (2 Replies)
I have 3 files, data file,schema file and a threshold file.
Data file contains data in which columns are distributed according to schema file. This data file doesn't contain any headers.
Three continuous columns in the data file represent single variable in schema file.
first column represent... (1 Reply)
input.csv:
Field1,Field2,Field3,Field4,Field4
abc ,123 ,xyz ,000 ,pqr
mno ,123 ,dfr ,111 ,bbb
output:
Field2,Field4
123 ,000
123 ,111
how to fetch the values of Field4 where Field2='123'
I don't want to fetch the values based on column position. Instead want to... (10 Replies)
I have two files which are the output of a multiple choice vocab test (60 separate questions) from 104 people (there are some missing responses) and the question list. I have the item list in one file (File1)
Item,Stimulus,Choice1,Choice2,Choice3,Choice4,Correct... (5 Replies)
Discussion started by: samonl
5 Replies
LEARN ABOUT ULTRIX
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)