Problem determining file Post: 302242183

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Determining file length

How can I determine what UNIX thinks the record size of any given file is??

2. UNIX for Dummies Questions & Answers

Hello, I'm attempting to modify a script so it can be executed via a batch scheduler. Part of the script calls a program called direct (which I believe may have something to do with Connect Direct). I have tried cat and vi on the file; cat returns absolute gibberish, vi states the file is...

3. Shell Programming and Scripting

Determining position in a tab delimited file

hi, I want to determine the position of specific values over a cutoff. So I have a string of values that are mainly negative in number and I want to print the rare few that are positive. Specifically I want to know the position of the value along the string. The position is based from right to...

4. Programming

Determining file access perms for current process

Stupid question, but is there an ANSI C stdlib function that will do this for me? I want to pass the function a path and determine if the current process can read/write/execute on the path. I suppose I can whip something up using fstat and then determining the current process's user/group IDs and...

5. Programming

determining the IP of a function

Is there a way to determine the "Instruction Pointer" of a function in c++, and if so can someone tell me?

6. Programming

Problem in determining runlevel through a C program

Hi, I am trying with the following code to retrieve the runlevel of my Linux Ubuntu 8.04 system by reading the "utmp" database. But I am getting blank output. May I know what correction I should do inorder to make this program to work? #include <stdio.h> #include <stdlib.h> #include...

7. UNIX for Advanced & Expert Users

Determining typing latency

Hi all, When I use an editor (vi) that is spawned in a remote server, visually I could see the latency between typing a character/word and being displayed on the terminal. I could see this visually but how do I get a metric on this or how to quantify this? As expected, when I type in a editor...

8. UNIX for Dummies Questions & Answers

Determining file size for a list of files with paths

Hello, I have a flat file with a list of files with the path to the file and I am attempting to calculate the filesize for each one; however xargs isn't playing nicely and I am sure there is probably a better way of doing this. What I envisioned is this: cat filename|xargs -i ls -l {} |awk...

9. Shell Programming and Scripting

Efficient method of determining if a string is in a file.

Hi, I was hoping someone could suggest an alternative to code I currently have as mine takes up far too much processor time and it to slow. The situation: I have a programme that runs on some files just before they are zipped up and archived, the program appends a one line summary of the...

10. Linux

Determining Values for NIce and Priority items in limits.conf file

I've been looking online trying to find the correct value nice and priority can take in the limits.conf file. ON the man page it says; Does this mean priority can be any negative number and any positive? Then Does this mean any number between -20 and 19 also what does the definition of nice...

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)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Determining file length

Discussion started by: jbrubaker

2. UNIX for Dummies Questions & Answers

Determining type of file

Discussion started by: JWilliams

3. Shell Programming and Scripting

Determining position in a tab delimited file

Discussion started by: phil_heath

4. Programming

Determining file access perms for current process

Discussion started by: DreamWarrior