Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

patextract(1) [debian man page]

PATEXTRACT(1)						      General Commands Manual						     PATEXTRACT(1)

NAME
patextract - Extract a part of a PNG image file SYNOPSIS
patextract infile x y width height DESCRIPTION
patextract is a program that extracts a part of a PNG image file and output that part in PAT format. infile.png is an RGB or RGBA PNG file; the resulting part of the image is written in PAT format to stdout. The file can be used with vis- grep(1) to scrape screen content. OPTIONS
This command does not have any options. SEE ALSO
pat2ppm(1), patextract(1), rgb2pat(1), visgrep(1), xte(1). AUTHOR
png2pat was written by Steve Slaven <bpk@hoopajoo.net>. This manual page was written by Aurelien Jarno <aurel32@debian.org>, for the Debian project (but may be used by others). October 18, 2003 PATEXTRACT(1)

Check Out this Related Man Page

PNGPHOON(1)						      General Commands Manual						       PNGPHOON(1)

NAME
pngphoon -- Creates a png file with the current phase of the moon SYNOPSIS
pngphoon [-w width] [-h height] [-f filename] [-x moons_in_x] [-y moons_in_y] [-s density] [-b] DESCRIPTION
This manual page documents briefly the pngphoon command. This manual page was written for the Debian distribution because the original program does not have a manual page. pngphoon is a program that creates a PNG image of the current phase of the moon. It is a successor to xphoon but does not write to the root window, but to a file. You can use it with window managers that accept commands for their background image settings. It is pronounced "pingphoon" (like "typhoon"). OPTIONS
This program takes the following options. -h Mandatory. Gives the image height. The image must be at least 760px high to be able to contain the moon. If the image is smaller only the stars will be plotted. -w Mandatory. Gives the image width. The image must be at least 760px wide to be able to contain the moon. If the image is smaller only the stars will be plotted. -f Mandatory. File name the PNG image shall be written to, for output to stdout use - instead of a filename -x Number of moons in x axis (for multihead configurations) -y Number of moons in y axis (for multihead configurations) -s Star density -b Black (no earthlight) AUTHOR
This manual page was written by Meike Reichle meike@alphascorpii.net for the Debian system (but may be used by others). Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2. On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL-2. PNGPHOON(1)
Man Page

13 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Adding the individual columns of a matrix.

I have a huge matrix file containing some 1.5 million rows and 6000 columns. The matrix looks something like this: 1 2 3 4 5 6 7 8 9 3 4 5 I want to add all the numbers in the columns of this matrix and display the result to my stdout. This means that the numbers in the first column are: ... (2 Replies)
Discussion started by: shoaibjameel123
2 Replies

2. Shell Programming and Scripting

awk or sed - Convert 2 lines to 1 line

Hi, Just trying to get to grips with sed and awk for some reporting for work and I need some assistance: I have a file that lists policy names on the first line and then on the second line whether the policy is active or not. Policy Name: Policy1 Active: yes Policy... (8 Replies)
Discussion started by: guinch
8 Replies

3. Shell Programming and Scripting

How can I do this in VI editor?

version info : vi availabe with RHEL 5.4 I have a text file with 10,000 lines. I want to copy lines from 5000th line to 7000th and redirect to a file. Any idea how I can do this? Note: The above scenario is just an example. In my actual requirement, the file has 14 million lines and I want... (9 Replies)
Discussion started by: kraljic
9 Replies

4. Fedora

Is UNIX an open source OS ?

Hi everyone, I know the following questions are noobish questions but I am asking them because I am confused about the basics of history behind UNIX and LINUX. Ok onto business, my questions are-: Was/Is UNIX ever an open source operating system ? If UNIX was... (21 Replies)
Discussion started by: sreyan32
21 Replies

5. What is on Your Mind?

Introduction

Hello, I couldn't find an actual introduction thread, so I decided to just put this here. I go by d0wngrade online. I have been programming in multiple languages for about 15+ years. I started with standard web design languages like HTML and CSS, but I then advanced from design to development... (2 Replies)
Discussion started by: d0wngrade
2 Replies

6. UNIX for Advanced & Expert Users

Detecting unused variables...

Hi guys... The first active code line in AudioScope.sh is set -u . This causes a complete exit if a variable is used/found but has not been allocated at the start of the program. However, apart from writing code to do the task, is there a switch to to check which variables have been... (17 Replies)
Discussion started by: wisecracker
17 Replies

7. Shell Programming and Scripting

One instance of comparing grep and awk

Hi. In thread https://www.unix.com/shell-programming-and-scripting/267833-grouping-counting.html rovf and I had a mini-discussion on grep and awk. Here is a demo script that compares the awk and grep approaches for this single problem: #!/usr/bin/env bash # @(#) s2 Demonstrate group... (1 Reply)
Discussion started by: drl
1 Replies

8. Shell Programming and Scripting

Find columns in a file based on header and print to new file

Hello, I have to fish out some specific columns from a file based on the header value. I have the list of columns I need in a different file. I thought I could read in the list of headers I need, # file with header names of required columns in required order headers_file=$2 # read contents... (11 Replies)
Discussion started by: LMHmedchem
11 Replies

9. OS X (Apple)

Installing Dash Shell on OS X Lion

For those interested in installing dash shell on OSX Lion to help test POSIX compliancy of shell scripts, it is quite easy. I did it like this: If you don't have gcc on your system: 0. Download and install the Command Line Tools for Xcode package from Sign In - Apple * 1. Download the dash... (2 Replies)
Discussion started by: Scrutinizer
2 Replies

10. UNIX for Beginners Questions & Answers

Weird 'find' results

Hello and thanks in advance for any help anyone can offer me I'm trying to learn the find command and thought I was understanding it... Apparently I was wrong. I was doing compound searches and I started getting weird results with the -size test. I was trying to do a search on a 1G file owned by... (14 Replies)
Discussion started by: bodisha
14 Replies

11. UNIX for Beginners Questions & Answers

How to copy a column of multiple files and paste into new excel file (next to column)?

I have data of an excel files as given below, file1 org1_1 1 1 2.5 100 org1_2 1 2 5.5 98 org1_3 1 3 7.2 88 file2 org2_1 1 1 2.5 100 org2_2 1 2 5.5 56 org2_3 1 3 7.2 70 I have multiple excel files as above shown. I have to copy column 1, column 4 and paste into a new excel file as... (26 Replies)
Discussion started by: dineshkumarsrk
26 Replies

12. What is on Your Mind?

New UNIX and Linux History Sections

Dear All, Taking a break from Vue.js coding for the site, SEO and YT videos; and hopefully addressing some well deserved criticism from some here that I have been too focused on the visual aspects of the forums versus the substance and the community.... While the "current generation... (9 Replies)
Discussion started by: Neo
9 Replies

13. Programming

My first PERL incarnation... Audio Oscillograph

Hi all... Well guys and gals, I jumped in at the deep end and found things that PERL cannot do by default. Many tricky terminal escape codes are not catered for so I had to create workarounds. One thing I searched for was this: Passing perl variable to shell command AND, @Neo this was... (15 Replies)
Discussion started by: wisecracker
15 Replies