Hello,
I am in need of a easy to read and easy to understand, Unix scripting book.
Can anyone make any recommendations ?
thanks in advance
simon2000 (2 Replies)
Hi,
I want to check whether a file of the format myfile_YYYYMMDD_HHMMSS.txt exists in a particular directory. Here YYYYMMDD_HHMMSS is the time stamp, so it will be numbers always .
What is the best method to do this
I did it like this :
ls myfile_*_*.txt
but it will list files... (1 Reply)
I have some data that is something like this?
item: onhand counted location
ITEM0001 1 0 a1
ITEM0001 0 1 a2
ITEM0002 5 0 b5
ITEM0002 0 6 c1
I want to sum up... (6 Replies)
I need to gain one of these fast!...
Any ideas on best way to go about it?...I have money to spend but not sure how to do it.
Solaris certification (SUN Admin Part 1 and/or Part 2) as well as proficiency in AIX
OR AIX certification (ASA and/or ASP) as well as proficiency in Solaris, (1 Reply)
Hi,
I need a sql statement for a table, which simply stores a text. It has a column ID, key1, key2, ..., text, date etc. The text can be entered using a line break (return) in an oracle form.
ID key1 key2 text date
1 K1 ... (16 Replies)
I am planning to dual boot Windows XP and Ubuntu 9.04, I have already burned Ubuntu into a CD and have also downloaded the ISO. But when I go to My Computer to start the installation, a different icon appears. And when I open it with ISO Buster, it opens up separately. I'm confused on what to... (5 Replies)
Hi,
I have urls in my input file like this
http://unix.com/abc/def
http://unix.com/kil/min
I want to use the / as separator and print the last content as another column like this
http://unix.com/abc/def def
http://unix.com/kil/min min
I was using awk -F option and then joining the... (3 Replies)
Hello Members,
I have a csv file in the format below. Need help with awk statement to break nth column into 3 separate columns and export the changes to new file.
input file --> file.csv
cat file.csv|less
"product/fruit/mango","location/asia/india","type/alphonso"
need output in... (2 Replies)
Hi Guys,
Need help with logic to break Column nth in a CSV file into two
for e.g
Refer below the second column as the nth column
"abcd","","type/beta-version"
need output in a following format
"abcd","/place/asia/india/mumbai","/product/sw/tomcat","type/beta-version"
... (5 Replies)
Hi,
I have urls in my input file like this (1 Reply)
Discussion started by: tmonk1
1 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)