also for cmdopts in "$*";do will work for the reason I said in previous quote
which is using "" in a var is necessary if there is spaces in this variable.
BR
No, it will not work. It will lump all the arguments into a single parameter; not what the OP wants at all.
In contrast, "$@" expands to each argument as a separate parameter, keeping arguments containing spaces as distinct parameters.
Say I have (in psuedocode)
For i=1 to 10
tar cvfb /... 5*i /junk(i)
end
What I mean is that I want each successive for loop to have the block size parameter be 5 times the current counter. This isn't my actual code, just a stupid example...So the question is how do I descrive that parameter... (2 Replies)
Hi,
I have one shell script which use two parameter however one of its parameter have space in between.
eg.
a.sh 20110114 b c d
here b c d is one parameter
I used 'b c d' but its not giving correct result.
Also i tried b\c\d but this one also didnt work.
Any help would be... (5 Replies)
Hello everyone,
My main objective is to search for text within a file, namely a block of text where each line ends with a backslash "\".
However, the block must begin with a keyword, like "loginstring".
Here is an example of a file that contains a block:
###############
loginstring \... (2 Replies)
Hi,
Could you please tell me how nawk command works when there is a asterisk <*> or space with asterisk < *> or <* > in the parameter.
I am just trying to read line by line and fetch fourth parameter separated by delimiter (|).
But if there is a * or < *> or <* > in the fourth parameter it... (7 Replies)
Hi, i have this script
setenv.sh
if
then
echo "is empty"
fi
echo "done"
The following is the result when i run the script from command without and with a dot and space operator
$ setenv.sh
is empty
done
$ . setenv.sh
sh: VAR_1: Parameter not set.
$
It's our standard to run... (5 Replies)
my program is designed to take the first parameters as extension, then the rest of the parameters as files to be searched for and, if found, modified by the extension. If not found, it prints an error.
Everything is great until: ./chExt.sh 'com' 'king cobra.dat'
where $file splits up the two... (2 Replies)
I wrote this script which works well when I manually input 55518622 and 1
but I need this script to be generic and loop over the following table
awk '$4>(55518622-500000) && $4<(55518622+500000)' chr1_GEN2bim | awk 'BEGIN {min=1000000000; max=0;}; {\
if($4<min && $4 != "") min = $4; if($4>max... (8 Replies)
Hi,
need help to pass an paremeter to for loop script
$cat tp.ksh
for i in `grep $1 | cut -d "/" -f 5 | cut -d" " -f2`
do
fgrep $i $1 | grep 'with value' | cut -d "|" -f 2
done
$tp.ksh test_data.plan_49989_2015-05-01-00-13-38.log
command doesnot return the values. (5 Replies)
Hi All,
I have created one function for KSH and was running well with one parameter input since I just had to use $1 to get the parameter.
Now I want to do loop for each parameter(actually filenames) . I have try to use do loop, but $i does not resolve to parameter instead it resolves to 1,... (5 Replies)
Discussion started by: mysocks
5 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)