things root can't do Post: 302289904

6 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Run non-root script as root with non-root environment

All, I want to run a non-root script as the root user with non-root environment variables with crontab. The non-root user would have environment variables for database access such as Oracle or Sybase. The root user does not have the Oracle or Sybase enviroment variables. I thought you could do...

2. Shell Programming and Scripting

PHP - few things without root access

Helo, everybody ! I want to set up a web server. To make my work a little bit easyer, I surfed the internet to see how other web sites/servers are configured, and a few questions joined my mind (as I've never done a web server). So, my main question is: - How can I add some users from a web...

3. Programming

Complicating things?

So basically what im trying to do is ... Open file, read that file, than try to find .. We or we and replace them with I, but not replace the cases where words contain We or we, such as Went, went, etc a and replace them with the, but not replace the cases where words contain a, such as...

4. Programming

Question about several things in C

Hey guys, first of all I'd like to say Hi to everyone. I am new here and this is my first post. I have a question about some C stuff. I am in Computer Science and I have an assignment for a UNIX Applications course. It is really complicated, however. We're using the C language for this and...

5. UNIX for Dummies Questions & Answers

Just trying to find out a few things ....

Hi everyone Just a couple of quick questions if I may. Can I ask what is meant by "flavours"?? I've come across it many times in the forums and I'm guessing that it is a variery of either Linux or UNIX (I know nil about either) which has developed but not really got a clue. ...

6. Solaris

Migration of system having UFS root FS with zones root to ZFS root FS

Hi All After downloading ZFS documentation from oracle site, I am able to successfully migrate UFS root FS without zones to ZFS root FS. But in case of UFS root file system with zones , I am successfully able to migrate global zone to zfs root file system but zone are still in UFS root file...

LEARN ABOUT OSX

ppmtopgm

ppmtopgm(1)						      General Commands Manual						       ppmtopgm(1)

NAME

       ppmtopgm - convert a portable pixmap into a portable graymap

SYNOPSIS

       ppmtopgm [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as  input.  Produces a portable graymap as output.  The output is a "black and white" rendering of the original
       image, as in a black and white photograph.  The quantization formula used is .299 r + .587 g + .114 b.

       Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any  ppm  program  can
       read  pgm  (and	pbm  ) files automatically.  pgmtoppm is for colorizing a pgm file.  Also, see ppmtorgb3 for a different way of converting
       color to gray.  And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate  the  original
       colors, not necessarily a way that looks like a black and white photograph.

QUOTE

       Cold-hearted orb that rules the night
       Removes the colors from our sight
       Red is gray, and yellow white
       But we decide which is right
       And which is a quantization error.

SEE ALSO

       pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5)

AUTHOR

       Copyright (C) 1989 by Jef Poskanzer.

								   10 April 2000						       ppmtopgm(1)