TTYIMAGE(1) General Commands Manual TTYIMAGE(1)NAME
ttyimage - RADIANCE driver for dumb ASCII terminal
SYNOPSIS
ttyimage [ -c resolu ][ -r ] [ pixfile ]
DESCRIPTION
Ttyimage takes the RADIANCE picture file pixfile and displays it on a dumb terminal. If no pixfile is given, the standard input is read.
AUTHOR
Greg Ward
SEE ALSO pfilt(1), rpict(1), ximage(1)RADIANCE 10/9/97 TTYIMAGE(1)
Check Out this Related Man Page
XSHOWTRACE(1) General Commands Manual XSHOWTRACE(1)NAME
xshowtrace - interactively show rays traced on RADIANCE image under X11
SYNOPSIS
xshowtrace [ -s ][ -T ][ rtrace options ] octree picture
DESCRIPTION
Xshowtrace takes a RADIANCE octree and a picture file and displays it on an X11 window server using ximage(1). The picture should have
been created from a previous rpict(1) or rvu(1) calculation using the given octree. Once the image is displayed, the user can use the 't'
command of ximage to select points on the image to display the ray tree. Rtrace then produces a ray tree, which xshowtrace will display
(in red on a color screen). The -s option slows the display of each ray traced to make it easier to follow the process. The -T option
traces rays to light sources, which are normally hidden.
AUTHOR
Greg Ward
BUGS
If the pointer is moved between the time 't' is pressed and xshowtrace starts drawing rays, the rays will be displaced.
SEE ALSO oconv(1), rpict(1), rtrace(1), rvu(1), ximage(1)RADIANCE 11/15/93 XSHOWTRACE(1)
Why do shell builtins like echo and pwd have binaries in /bin? When I do which pwd, I get the one in /bin. that means that I am not using the builtin version? What determines which one gets used? Is the which command a definitive way to determine what is being run when I enter pwd? (16 Replies)
Introduction
I have seen some misinformation regarding Unix file permissions. I will try to set the record straight. Take a look at this example of some output from ls:
$ ls -ld /usr/bin /usr/bin/cat
drwxrwxr-x 3 root bin 8704 Sep 23 2004 /usr/bin
-r-xr-xr-x 1 bin bin ... (6 Replies)
I see lot of ad-hoc shell scripts in our servers which don't have a shebang at the beginning .
Does this mean that it will run on any shell ?
Is it a good practice to create scripts (even ad-hoc ones) without shebang ? (16 Replies)
For a starter I know the braces are NOT in the code...
Consider these code snippets:-
#!/bin/bash --posix
x=0
somefunction()
if
then
echo "I am here."
fi
# somefunction
#!/bin/bash --posix
x=0
somefunction()
if (2 Replies)
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)
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)
Hi all,
I am learning POSIX shell programming, and the book I read, uses the let command for integer arithmetic.
I have downloaded and use the shellcheck program on Linux.
This programs says:
In POSIX sh, 'let' is undefined.
See the screenshot attached.
What is the POSIX... (1 Reply)
I don't know how to start this but here goes.
I've been "using" Linux for over 10 years, possibly more and I still feel like I'm nowhere
where I should be. I'll be fair most of my time was spent either figuring out how
to run games on *nix at the time but as I got older and "wiser" I... (8 Replies)
In a professional environment with traditional application you often want (or are asked) to report the users.
Traditionally there is the who command
who | awk '{print $1}'telnetd or sshd register the users in the utmp file, to be shown with who, w, users, finger, pinky, ...
In addition they... (1 Reply)
Hi all, (mainly Neo)...
I keep noticing that the SQRT code I wrote recently for a POSIX shell keeps appearing, (the green colour sticks out like a sore thumb).
So I decided to take a look on Google.
Guess what?
UNIX.COM comes first in Google's listing just from two words, see image... (2 Replies)