Greetings All!!
I have a very peculiar problem where I have to parse a big text file and extract useful data out of it with starting and ending block pattern matching.
e.g. I have a input file like this:
sample data
block1
sample data
start
useful data
end
sample data
block2
sample... (5 Replies)
I have a file containing the following contents
All of us, including Zippy, our dog
All of us, including Zippy and Zippy
All of us, including Zippy and Zippy and Zelda
Testing All of us Zippy
Now, i wanna grep and get the lines which has only one occurance of word Zippy and starting with... (1 Reply)
Hi all,
I need to extract some lines from a file based on a condition. For ex:
My file will contain 50 lines and i need to extract line which has "File" in it and then the line which has "date" in it. Which command will be the most efficient way to do it. I have tried two ways
1.... (1 Reply)
Hi,
I have a sql file and i need to extract the table names used in the sql file using a unix script. If i can extract the lines between the keywords 'FROM' and 'WHERE' in the file, my job is done. can somebody tell me how to do this using a shell script. If u can just let me know, how to... (2 Replies)
i want to extract lines 5 and 7 from a txt file which contains nearly 20 entries how to do it
also i want to check whether the 42nd character is 'S' in that line
suggestions welcome (4 Replies)
hi all,
i searched in unix.com and accquired the following commands for extracting specific lines from a file ..
sed -n '16482,16482p' in.sql > out.sql
awk 'NR>=10&&NR<=20' in.sql > out.sql....
these commands are working fine if i give the line numbers as such .. but if i pass a... (2 Replies)
Hi,
We have a file where we need to extract the lines of a file based on the first three characters of every line in that file.
Eg:
RAM hill station
SAM student
RAM rose
SAM apple
RAM india
SAM australia
RAM happy
RAM heaven
SAM smile
RAM glow
So, all the lines that start... (5 Replies)
Hi,
I have one file, say file 1, that has data like below where 19900107 is the date,
19900107 12 144 129 0.7380047
19900108 12 168 129 0.3149017
19900109 12 192 129 3.2766666E-02
... (3 Replies)
consider i have two files
cat onlyviews1.sql
CREATE VIEW V11
AS
SELECT id,
name,
FROM
etc etc
WHERE etc etc;
CREATE VIEW V22
AS
SELECT id,
name,
FROM
etc etc
WHERE etc etc;
CREATE VIEW V33
AS (10 Replies)
Hi UNIX Members,
I've been tasked with performing the following:
Extract a block of data in column form
#This data changes each time, therefore automating future procedures
Please Note the following:
line = reading a line from a file_list that leads to the data
The filename is called... (16 Replies)
Discussion started by: Klor
16 Replies
LEARN ABOUT REDHAT
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)