First of all, you must put in 'ticks' not "quotes" around the embedded g/awk code, because in the latter $1 $2 ... are substituted with positional shell parameters. The shell does this before it passes the code string to g/awk.
I get the following message if I use single quotes:
It runs ok using double quotes
Quote:
Unfortunately your min works only if the first line in output.txt has non-null value, so with your sample data the rest of the algorithm (which I don't really understand) doesn't work out, always printing the input line followed by a zero.
You right! Let me work a bit more on that. Any suggestions to improve the first script so I dont keep using | to stitch it all together?
I need to do a substitution: CPF to ,C,P,F, CPM to ,C,P,M, SPF to ,S,P,F etc. I can do each of them with separate substitutions e.g. s/CPF/,C,P,F/ but I'd like to know if there is a more elegant solution. In general, how can I use the results of the search in the substitution, ... (3 Replies)
Is there a way to simplify stating 1 through to 10, for example in a for loop construct?
for x in 1 2 3 4 5 6 7 8 9 10
do
....
done
I have tried (1-10) with no luck.. thanks (2 Replies)
tcpdump -nr testdump|awk '!/:/;gsub(/^+|+$/,""){print $3};a!~$0;{a=$0};{print $3};!/length/;/./;!/11\:/;!/8 7 6 5 4 3 2 1/;!/UDP/{b=$0} END {for (j=i-1; j>=0; ) print b };{for (i=NF; i>0; i--) printf("%s ",i);printf ("\n")}'
*NOTE IN j>=0 the ; ) was given a space since a smiley is showing up...... (1 Reply)
my script:
FILE="$1"
echo "You Entered $FILE"
if ; then
tmp=$(cat $FILE | sed '/./!d' | sed -n '/regex/,/regex/{/regex/d;p}'| sed -n '/---/,+2!p' | sed -n '/#/!p' | sed 's/^*//' | sed -e\
s/*:// | sed -n '/==> /!p' | sed -n '/--> /!p' | sed -n '/regex/,+1!p' | sed -n '/======/!p' | sed -n... (1 Reply)
Hi,
Is there a way to simplify the below script? Because I am having problems executing this if I added this to CRON. Also, you may notice that its objective is to put all information in one file (rm1.txt). And in addition file "sRMR_6.txt" to sRMR_23.txt" changes its information everyday.... (4 Replies)
Hello,
I have a large number of sed commands that I execute one after the other, simply because I don't know if there's a shorter way to do it. I hope someone can help me save some time :-)
These are my commands:
1.) remove all " in the file:
sed -e 's/\"//g' file
2.) insert ( and... (3 Replies)
the code below is a small fragment of the actual line, in fact i have about 20 values i'm comparing and want to know if it can be simplified. other than the x.xx.xx format of the value they have nothing in common
if || || ; then
do this
else
do this
fiany suggestions? (6 Replies)
Hi all, I don't have much experience with shell scripting and I was wondering if there's a shorter way to write this.
Basically, given a list of strings separated by new lines, I want to prepend each string with a prefix and separate the strings with commas
i.e.
stra
strb
strc
becomes... (3 Replies)
Hello,
I want to submit my awk script into cluster queue as my job takes about forty minutes to finish so I can not run it on the main node.
My awk script is like the following and I have three files. so, I write :
qsub -q short.q Myscript.awk file1 file2 file3
It submits the work into... (1 Reply)
I have the following script:
awk -F "," '{ if ( $4 > 450 && $4 < 550 && $5 > 0.5 ) print $2, $5; else print $2, "0" }' test.txt | awk '{a+=$2}END{for(i in a){print i, a}}' | sort -nk 1.2 | sed 1,2d
and a bunch of files that look like the test file attached here.
I am outputting all... (2 Replies)
Discussion started by: Xterra
2 Replies
LEARN ABOUT SUNOS
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)