12-16-2007
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi there,
I found the following script on the net, i like to use it as a standard template for new scripts.
But i do not understand the meaning of the last line, can anybody explain what going on on the last line
vflag=off
filename=
while getopts vf: opt
do
case "$opt" in
v)... (9 Replies)
Discussion started by: janr
9 Replies
2. Shell Programming and Scripting
Hi, i've got the following:
a=`echo $b | grep '^.*/'`
i'm storing in the variable the value of the variable b only if it has a / somewhere.
It works, but i don't want to print the value. How do i give the value of b to the grep command without the echo?
thanks! (5 Replies)
Discussion started by: kfad
5 Replies
3. Shell Programming and Scripting
Hello..
I am doing some awk-ing and among all I use substr inside it..
I have: ....substr($0,60,37)
meaning as U all know take from 37 char. from point 60..
can I put it like this substr($0,60,end of line)
meaning take it from point 60 and take all characketrs in that line until line... (2 Replies)
Discussion started by: amon
2 Replies
4. UNIX for Dummies Questions & Answers
Dear all,
I have a question regarding the remote access a server without login using "ssh". I'm thinking if there is anyway to send a certificate pass to ssh command.
For example, I need write a script for a user who doesn't have access to any server but running this script. Within the... (1 Reply)
Discussion started by: ting123
1 Replies
5. Shell Programming and Scripting
First af all hi.
i want to create a batch script which inform when users log in last time on system or if they are online when they logged in.
I want ot use a file .users which has the usernames of users.
i want to print for example
peter is ONLINE: Logged in on Wed Feb 11 07:47
alex... (2 Replies)
Discussion started by: sasa
2 Replies
6. Programming
Can any body tell me when I put close(2), why the code does not show any out put?
#include <stdio.h>
#include <fcntl.h>
#include <errno.h>
int main(){
int fd1,fd2,fd3,fd4;
close(2);
fd1=open("test1.txt",O_WRONLY |O_CREAT | O_TRUNC,0744);
fprintf(stderr,"fd1 = %d\n",fd1);
... (5 Replies)
Discussion started by: mlhazan
5 Replies
7. Programming
Hello experts,
I am using fork() in my code but I am confused which output comes first child or parent?
I did the following code .My book shows parent first but my linux shows child first.Can anyone tell me why?
#include <stdio.h>
int main(){
int pid;
printf("I am original process with pid... (5 Replies)
Discussion started by: mlhazan
5 Replies
8. Shell Programming and Scripting
Hi Guys,
I have just ran into a small problem where I am trying to ssh to another server and the script does a wget on that server. Following is the syntax I am using though it's not working as expected.
A normall wget on the local system simply shows the verbose output in one horizontal line... (2 Replies)
Discussion started by: rockf1bull
2 Replies
9. Shell Programming and Scripting
just to confirm
du from sh show sizes as multiples of 512 byte right? (4 Replies)
Discussion started by: Nick1097
4 Replies
10. Programming
I have this small program that runs with the flat assembler. My problem is that at the receive line function it receives the line and if there isn't a $ typed at the end of the user input the program displays a lot of strange stuff, sometimes beeps and then it seems to terminate without causing any... (13 Replies)
Discussion started by: Errigour
13 Replies
LEARN ABOUT ULTRIX
displayofscreen
BlackPixelOfScreen(3X11) MIT X11R4 BlackPixelOfScreen(3X11)
Name
BlackPixelOfScreen, WhitePixelOfScreen, CellsOfScreen, DefaultColormapOfScreen, DefaultDepthOfScreen, DefaultGCOfScreen, DefaultVisualOf-
Screen, DoesBackingStore, DoesSaveUnders, DisplayOfScreen, XScreenNumberOfScreen, EventMaskOfScreen, HeightOfScreen, HeightMMOfScreen, Max-
CmapsOfScreen, MinCmapsOfScreen, PlanesOfScreen, RootWindowOfScreen, WidthOfScreen, WidthMMOfScreen - screen information functions and
macros
Syntax
BlackPixelOfScreen(screen)
WhitePixelOfScreen(screen)
CellsOfScreen(screen)
DefaultColormapOfScreen(screen)
DefaultDepthOfScreen(screen)
DefaultGCOfScreen(screen)
DefaultVisualOfScreen(screen)
DoesBackingStore(screen)
DoesSaveUnders(screen)
DisplayOfScreen(screen)
int XScreenNumberOfScreen(screen)
Screen *screen;
EventMaskOfScreen(screen)
HeightOfScreen(screen)
HeightMMOfScreen(screen)
MaxCmapsOfScreen(screen)
MinCmapsOfScreen(screen)
PlanesOfScreen(screen)
RootWindowOfScreen(screen)
WidthOfScreen(screen)
WidthMMOfScreen(screen)
Arguments
screen Specifies a pointer to the appropriate structure.
Description
The macro returns the black pixel value of the specified screen.
The macro returns the white pixel value of the specified screen.
The macro returns the number of colormap cells in the default colormap of the specified screen.
The macro returns the default colormap of the specified screen.
The macro returns the default depth of the root window of the specified screen.
The macro returns the default GC of the specified screen, which has the same depth as the root window of the screen.
The macro returns the default visual of the specified screen.
The macro returns or which indicate whether the screen supports backing stores.
The macro returns a Boolean value indicating whether the screen supports save unders.
The macro returns the display of the specified screen.
The function returns the screen index number of the specified screen.
The macro returns the root event mask of the root window for the specified screen at connection setup.
The macro returns the height of the specified screen.
The macro returns the height of the specified screen in millimeters.
The macro returns the maximum number of installed colormaps supported by the specified screen.
The macro returns the minimum number of installed colormaps supported by the specified screen.
The macro returns the number of planes in the root window of the specified screen.
The macro returns the root window of the specified screen.
The macro returns the width of the specified screen.
The macro returns the width of the specified screen in millimeters.
See Also
AllPlanes(3X11), ImageByteOrder(3X11), IsCursorKey(3X11)
X Window System: The Complete Reference, Second Edition, Robert W. Scheifler and James Gettys
BlackPixelOfScreen(3X11)