Hi Folks!
I am a MacUser and am trying to learn Unix for the last few months.
I will explain in detail what I am trying to do, and apreciate you help if you can teach me even if it is a single comand line inside the script.
I own a small company, where I manufacture special gypsums and... (5 Replies)
Hi All,
I want to read username and lastupdate only from /etc/security/passwd and write the same data to another file:
The data in /etc/security/passwd will be in this form for example:
For more details : http://www.unet.univie.ac.at/aix/files/aixfiles/passwd_security.htm#A1219924
smith:... (0 Replies)
Actually i am working with two diffrent files having same structure
each file contain Ten diffrent column and i want to write a script
which will compare the colummns of first file with the column of second file and diiference will be send to the first column of third file .
similarly for... (5 Replies)
UNIX shell script (Bourne shell syntax) called
admin_script. This script is described below as a usage summary:
admin_script
Note: if no options are specified, a menu is displayed which allows
users to perform one of the following tasks and then exit. If
incorrect options are provided,... (1 Reply)
Hello,
I have done some BASIC shell scripting/PERL scripting before so I am familiar with the languages. I am not really sure which one would lend itself better to the application I have to write.
I am required to scan the message logs for possible break in attempts. If I use shell scripting... (2 Replies)
Hi All,
I have written the following script. I have just repeated some commands, and I am sure there is a more better way to do it. I hope I one of gurus here will help me make it in a better shape. Here is the script:
#! /bin/sh
sed -i -e "s/test2.xxx/test3.xxx/" -e "s/output2/output3/"... (2 Replies)
I am adapting an Open Step ping server script to Ubuntu 8.10 and one section of my script isn't working
# if there are servers that just went down or came back up, notify
# with high importance
if ; then
echo notifying of servers that are up again or just now down
notify high
# if there... (2 Replies)
Hi there :rolleyes:
I have a folder called backup
it is path is: ~/backup
Inside this folder, there are four files:
~/backup/test1.cpp
~/backup/test2.cpp
~/backup/test3.cpp
~/backup/PATHS.TXT
The fourth file PATHS.TXT contains the original paths for the three files. This is the... (4 Replies)
Hi,
We have smb client running on two of the linux boxes and smb server on another linux system. During a backup operation which uses smb, read of a file was allowed while write to the same file was going on.Also simultaneous writes to the same file were allowed.Following are the settings in the... (1 Reply)
Hi All,
I have written the follwing script to take the backup of the file every day
along with the date.
DATE=`date +%Y%m%d`
export DATE
cp var/hr/hr333m.txt cp var/hr/payments/hr333m_$DATE.txt
The file name as follows after taking the backup.
hr333m_20110630.txt
Could you... (3 Replies)
Discussion started by: ajaykumarkona
3 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)