hi all, i am quite new with Perl (just 1 week of experience) and i am suppose to understand the usage of library, which i can't, anyway...
i came across this library...i think from the linux redhat redhat.linux.lib.pl, there are a couple of functions there that can be used to retrieve information... (3 Replies)
Hi all,
I am working on a shell script to extract information from a file that has output from Oracle sqlplus. The problem is that the output of a single line is spread across multiple lines and i do not know as how to extract the particular filed at ones,which spans multiple lines.... (2 Replies)
I have a very long string (millions of characters).
I have a file with start location and length that is thousands of rows long:
Start Length
5 10
16 21
44 100
215 37
...
I'd like to extract the substring that corresponds to the start and length from each row of the list:
I tried... (7 Replies)
Hello,
I have got one file with more than 120+ million records(35 GB in size). I have to extract some relevant data from file based on some parameter and generate other output file.
What will be the besat and fastest way to extract the ne file.
sample file format :--... (2 Replies)
Hi, i have a file like this:
<Iteration>
<Iteration_iter-num>3</Iteration_iter-num>
<Iteration_query-ID>lcl|3_0</Iteration_query-ID>
<Iteration_query-def>G383C4U01EQA0A length=197</Iteration_query-def>
<Iteration_query-len>197</Iteration_query-len>
... (9 Replies)
hi, i have a file A like this:
******************* No 2823 ********************
contig15205-
G383C4U02H4G80+ is in contig15205-
G383C4U02HGLXM- is in contig15205-
G383C4U01C3HIZ+ is in contig15205-
... (3 Replies)
Dear all,
I want to extract around 300 columns from a very large file with almost 2million columns. There are no headers, but I can find out which column numbers I want. I know I can extract with the function 'cut -f2' for example just the second column but how do I do this for such a large... (1 Reply)
Gents,
If is possible please help.
I have a big file (example attached) which contends exactly same value in column, but from column 2 to 6 these values are diff. I will like to compile for all records all columns like the example attached in .csv format (output.rar ).. The last column in the... (11 Replies)
In a particular directory, there can be 1000 files like below.
filename is job901.ksh
#!/bin/ksh
cront -x << EOJ
submit file=$PRODPATH/scripts/genReport.sh maxdelay=30
&node=xnode01
tname=job901
&pfile1=/prod/mldata/data/test1.dat
... (17 Replies)
Hi All!!
I have a large file containing millions of records. My purpose is to extract 8 characters immediately from the given file.
222222222|ZRF|2008.pdf|2008|01/29/2009|001|B|C|C
222222222|ZRF|2009.pdf|2009|01/29/2010|001|B|C|C
222222222|ZRF|2010.pdf|2010|01/29/2011|001|B|C|C... (5 Replies)
Discussion started by: pavand
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)