can you redirect STDIN with command arguments?
I have tried this approach:
# ./script -option <argument1> <argument2> 0<$2
# $2: ambiguous redirect
Is this possible? (4 Replies)
Hi,
Program A: uses pipe()
I am able to read the stdout of PROGAM B (stdout got through system() command) into PROGRAM A using:
* child
-> dup2(fd, STDOUT_FILENO);
-> execl("/path/PROGRAM B", "PROGRAM B", NULL);
* parent
-> char line;
-> read(fd, line, 100);
Question:... (2 Replies)
Hi all
I've run into a snag in a program of mine where part of what I entered in at the start of run-time, instead of the current value within printf() is being printed out.
After failing with fflush() and setbuf(), I tried the following approach
void BufferFlusher()
{
int in=0;... (9 Replies)
Hi,
I am working on a project where I have to generate and execute nasm code on-the-fly. I generate the code in a file program.asm and then execute it.This output is to stdout which i redirect to an output file which i read back to compare results:
system("nasm -f elf program.asm >... (5 Replies)
All,
Ok...so I know I *should* be able to control a process's stdin and stdout from the parent by creating pipes and then dup'ing them in the child. And, this works with all "normal" programs that I've tried. Unfortunately, I want to intercept the stdin/out of the scp application and it seems... (9 Replies)
Hi,
i am using the below program to read from the standard input or to write to standard out put.
i know that using highlevel functions this can be done better than what i have done here.
i just want to know is there any other method by which i find the exact number of characters ( this... (3 Replies)
I want to differentiate the STDOUT and STDERR messages in my terminal .
If a script or command is printing a message in terminal I want to differentiate by colors,
Is it possible ?
Example:
$date
Wed Jul 27 12:36:50 IST 2011
$datee
bash: datee: command not found
$alias ls
alias... (2 Replies)
Well.. let's say i need to write a pretty simple script.
In my script i have 2 variables which can have value of 0 or 1.
$VERBOSE
$LOG
I need to implement these cases:
($VERBOSE = 0 && $LOG = 0) => ONLY ERROR output (STDERR to console && STDOUT to /dev/null)
($VERBOSE = 1... (5 Replies)
Discussion started by: Marmz
5 Replies
LEARN ABOUT DEBIAN
xcolors
XCOLORS(1) General Commands Manual XCOLORS(1)NAME
xcolors - display all X11 color names and colors
SYNOPSIS
xcolors [ -start color ] [ -near color ] [ -distance howfar ]
DESCRIPTION
xcolors reads the rgb.txt file that defines the color names the X server knows and displays the colors found.
At the top of the window is a sample region containing text. By clicking on the color names, the color of the sample text can be changed.
Mouse button 1 changes the foreground; button 2 changes the background. The text can also be edited.
Typing ``q'' exits the program.
OPTIONS
In addition the the usual X Toolkit options, xcolors understands these command line options:
-start name
specify a color name to start with; colors before this one in the rgb.txt file are skipped. This option is useful if there are more
colors than will fit on your screen or in your colormap.
-rgbfile filename
specify an alternate color database file to read.
-near nearcolor
only show colors near this one in the RGB space. All colors within a sphere in the RGB-space centered on nearcolor are displayed.
-distance howfar
defines how close colors have to be to nearcolor to be displayed. This option sets the radius of the sphere used by the -near
option. The scale is such that the RGB cube is 256 units on a side. The default is 64.
ACTIONS
set-foreground([color])
Set the foreground color of the sample region. If no color is provided, the color is taken from the border color of the widget
where the action occurred.
set-background([color])
Same as set-foreground() but sets the background color.
quit() Exit xcolors.
RESOURCES
Xcolors has a few top-level application resources that allow customizations that are specific to xcolors.
startColor (classStartColor)
See the -start option.
rgbFile (classRgbFile)
See the -rgbfile option.
nearColor (classNearColor)
See the -near option.
nearDistance (classNearDistance)
See the -distance option.
WIDGET HIERARCHY
Knowing the name and position in the hierarchy of each widget is useful when specifying resources for them. In the chart below, the class
and name of each widget is given.
Xcolors xcolors
Paned panes
AsciiText sample
Viewport viewport
Box colors
Label colorname
Label colorname
.
.
.
FILES
/etc/X11/rgb.txt
X color names and values.
BUGS
Assumes that all names for the same color are consecutive in the rgb.txt file.
Because xcolors cannot read the server's color name database, the color names it uses may not match those in the server. This is most
likely to happen if xcolors is run from a remote host.
The program would be faster if it used gadgets instead of widgets for the color spots.
AUTHOR
Stephen Gildea, MIT X Consortium
X Version 11 3 October 1991 XCOLORS(1)