Hi all,
i'm making some test on a data file. Imagine i have two columns inside it :
Just to understand how can it works, imagine to subtract 100 to the number in the first column when the other one in the second column changes by one. For example >> if changes from 20 to 21 then add 100 to 80381, if it changes from 20 to 19 subtract 100 to 80381..that's it.
Any idea it can be done with a shell script while reading a whole file?
Hi! I have a simple question about using a for loop.
I'm trying to open up all the zip files in the currect directory with ark, but I am getting the error "bash: syntax error near unexpected token `for $i ; do ark $i ; done ;
I looked in the info pages for bash, but I can't seem to figure... (2 Replies)
Hi guys, i have been struggling to achieve the following and therefor looking for some help.
I am trying to write something that will summerize the following output from my switches for daily totals.
Basicly if $1 $2 $3 doesnt change, we can keep adding up $4. Probably would use a awk print end... (3 Replies)
hi i am using bash shell to perform some subraction. here is what i have:
i have a while loop and am using i as a counter.
diff= `expr ${ARRAY1} - ${ARRAY2}`
for example array1 has -0.7145 and array2 has -0.7041.
when i try the above command, i get expr: non-numeric argument. any... (6 Replies)
Hello there
Been using Unix bash scripting for two days now so am very new to this. I am currently doing a project now and i'm basically making a noughts and crosses game (or tic tac toe).
I have created the board using an array. When I try and check to see if the array is empty using an If... (3 Replies)
Hi, I am trying to make a script to manage log. I want to write the name of the .gz I moved and the date :
for i in `ls $replog/*.gz`
do
echo " $i "
`echo $i date +%d:%m:%Y`
`echo $datee `>> $replog/mrnet.log
mv $i /var/log/vieux-logs
done
I need to echo... (10 Replies)
Hi All,
I am trying to monitor CPU load of few processes, with the same name.
The output that I get from top is the following
28171 root 20 0 1089m 21m 3608 S 103 0.3 15:16.89 /opt/ppp//h264rtptranscoder.bin --videoPort=14504 --audioPort=14505
27589 root 20 0 1060m 23m... (3 Replies)
Hello everyone,
I need your assistance with bash.
I want to sum up some numbers, that's not the big problem i think, but the values i want to some depending on another number.
For example, I have a file with some rows of content.
Number 1, Number 2, other content.
I want to sum up number... (4 Replies)
Hi everyone, first time visitor to these forums here.
Keeping a long story short I've been attempting to learn how to code in bash. I have VERY little previous experience with coding languages besides simply copying and pasting batch scripts for Windows. So, with that in mind I've followed a... (4 Replies)
Hello, guys !
I need a little help :)
Lets say i have log files with "n" calls like this one :
""""" <+825080825462>","+825080825462","60197774588","from-internal",
"SIP/518-00013e14","SIP/eu.test.com_outgoing-00013e15","Dial",... (4 Replies)
I am sharing a code snippet.
for (( i=0; i<=$(( $count -1 )); i++ ))
do
first=${barr2}
search=${barr1}
echo $first
echo "loop begins"
for (( j=0; j<=5000; j++ ))
do
if } == $search ]]; then
echo $j
break;
fi
done
second=${harr2}
echo $second (2 Replies)
Discussion started by: ngabrani
2 Replies
LEARN ABOUT MINIX
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)