I am searching some rather large text files using grep and or awk.
What I would like to know is if there is a way (either with grep, awk, or realy any other unix tool) to stop the search when a predifined number of results are returned.
I would like to do this for speed purpuses. When i get... (6 Replies)
In a loop, I want to append some text to a file without generating a new line (and then force a new line before re-iterating the loop). In the code below the first 'echo' command is OK as it uses '--n' for no new line. For the 'awk' line I *thought* I could solve it by using printf rather than... (1 Reply)
Hi,
Is it possible to find the total number of records processed by awk at begining.
NR gives the value at the end. Is there any variable available to find the value at the begining?
Thanks
----------
Suman (1 Reply)
Hy all,
I have a problem...can some one help me...
I have a file of records sort:
30|239|ORD|447702936929 |blackberry.net |20080728|141304|00000900|2|0000000000000536|28181|0000000006|0000000001|10|1
30|239|ORD|447702936929 |blackberry.net ... (4 Replies)
I'm trying to iterate a UNIX awk script that returns min/max temperature data for each day from a monthly weather data file (01_weath.dat). The temperature data is held in $5. The temps are reported each minute so each day contains 1440 temperature enteries. The below code has gotten me as far as... (5 Replies)
I've been working with an awk script and I'm wondeing id it's possible to count records in a file which DO NOT contain, in this instance fields 12 and 13.
With the one script I am wanting to display the count for the records WITH fields 12 and 13 and a seperate count of records WITHOUT fields... (2 Replies)
Hi all u brilient people on the forum...
I am trying to call the variable value in awk command for search pattern /start/,/stop/ but i am nt able to do this ....
wat i did is ..i have created two variable YESTERDAY and TODAY and passed the y'day n 2'days dates in it...like this
... (14 Replies)
Could someone please point me in the right direction with the following?
I have a program that generates logs that contains sections like this:
IMAGE INPUT
81 0 0.995 2449470 0 1726 368 1 0.0635 0.3291
82 0 1.001 2448013 0 1666 365 1 0.0649 ... (4 Replies)
Hi,
I have an awk code that reads an input file, checks the 4th column and tells if its fine.
#!/bin/ksh
{ if ($4 == 0)
print "fine"
else
print "some problem" }' FILENAME
My problem is that, I dont want to check the first 3 and last 3 lines.
This can be hard coded by using BEGIN and END... (9 Replies)
Hello,
I have files containing a large amount of values in columns, and I want to simplify the data by making the values binary, i.e. assigning 1/0 for each value above or below a certain threshold.
I am curious to know if it's possible to use awk to do this (or another way in bash). I've... (2 Replies)
Discussion started by: ksennin
2 Replies
LEARN ABOUT OPENSOLARIS
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)