Hi,
One silly question. I would like to add statement like below and append to a file. I used the below code; however, it does not work. Can anyone please tell me what mistakes I have made?
awk '
{ for (i=1;i<=563;i++)
print i
}'>>output.txt
Thanks.
-Jason (1 Reply)
ive input file contains to clums a and b spreated by pipe
a | b
123|456
323|455
and
xyz contains other info about a and b
now i want to print as follows:
a | b | "info from xyz"
but "info from xyz" might be more than 1 line and i want to keep the format to 3 cloums.
how to do it?... (3 Replies)
HI all
i have this script :
#!/bin/bash
sort /usr/tmp/"REPORT"$1 -o \
/usr/tmp/"SREPORT"$1 -k 1,7 -S 150
end of script
now i'm doing this command :
ls -lsgt *REPORT*
4 -rw-r--r-- 300 Sep 16 REPORT54784
4 -rw-r--r-- 301 Sep 16 SREPORT54784
as you can see the sorted file... (5 Replies)
And I want to delete the characters longer than 20 for each line start with #. The other lines should remain the same. I think this can be done by sed. Could anyone help me with this? Thanks!
my input file:
#ZP_05494889.1_Clostridium_papyrosolvens... (3 Replies)
Hi
I am using cat <filename> command in one of my datastage job(Command Activity). It is giving actual value but giving extra line.
Eg: Displayed Output: 1 and showing extraline(Eg: 1
) I had checked even wc -c it is giving one character extra.
If the file contains 11. wc -c says 3. ... (3 Replies)
hey,
I am trying to convert a sample russian encoding file to English encoding using iconv utility.
Its almost done but with each converted character i am getting one extra character which must not come.
my sample Russian text is
test.txt
А Б В Г Д Е Ж З И Й К ~
and script which i... (4 Replies)
Hello
I'm trying to extract two columns from a database using awk, the thing is i have a variable number of columns in each row, and I just need to get out the two first ones ending in ","
This is an example:
ABE, ABE V149 MAZIE ARD CYN ACY, ACY, , , ,TEC, , 5000, , , 1, ZNY,ZDC
ABE, ABE... (1 Reply)
I was wondering if I could use AWK to print from the nth character position to nth for all records in the file.
All I have been doing is printing/copying fields rather than characters. I found a way to print lines greater/less/equal to a character length which led me to believe there is a way... (3 Replies)
Hello:
I've input data:
Input data
--- 3:60069:C:T 60069 C T 1 0 0 1 0 0 1 0 0 1 0 0 1
--- 3:60079:A:G 60079 A G 1 0 0 0.988 0.012 0 1 0 0 1 0 0 1
--- rs186476240:60157:G:A 60157 G A 1 0 0 1 0 0 1 0 0 1 0 0 1
I edit/make first few columns before numbers (6th column) and want to... (4 Replies)
Discussion started by: genome
4 Replies
LEARN ABOUT REDHAT
sdl_pixelformat
SDL_PixelFormat(3) SDL API Reference SDL_PixelFormat(3)NAME
SDL_PixelFormat- Stores surface format information
STRUCTURE DEFINITION
typedef struct{
SDL_Palette *palette;
Uint8 BitsPerPixel;
Uint8 BytesPerPixel;
Uint32 Rmask, Gmask, Bmask, Amask;
Uint8 Rshift, Gshift, Bshift, Ashift;
Uint8 Rloss, Gloss, Bloss, Aloss;
Uint32 colorkey;
Uint8 alpha;
} SDL_PixelFormat;
STRUCTURE DATA
palette Pointer to the palette, or NULL if the BitsPerPixel>8
BitsPerPixel The number of bits used to represent each pixel in a surface. Usually 8, 16, 24 or 32.
BytesPerPixel The number of bytes used to represent each pixel in a surface. Usually one to four.
[RGBA]mask Binary mask used to retrieve individual color values
[RGBA]loss Precision loss of each color component (2^[RGBA]loss)
[RGBA]shift Binary left shift of each color component in the pixel value
colorkey Pixel value of transparent pixels
alpha Overall surface alpha value
DESCRIPTION
A SDL_PixelFormat describes the format of the pixel data stored at the pixels field of a SDL_Surface. Every surface stores a SDL_PixelFor-
mat in the format field.
If you wish to do pixel level modifications on a surface, then understanding how SDL stores its color information is essential.
8-bit pixel formats are the easiest to understand. Since its an 8-bit format, we have 8 BitsPerPixel and 1 BytesPerPixel. Since BytesPer-
Pixel is 1, all pixels are represented by a Uint8 which contains an index into palette->colors. So, to determine the color of a pixel in a
8-bit surface: we read the color index from surface->pixels and we use that index to read the SDL_Color structure from surface->for-
mat->palette->colors. Like so:
SDL_Surface *surface;
SDL_PixelFormat *fmt;
SDL_Color *color;
Uint8 index;
.
.
/* Create surface */
.
.
fmt=surface->format;
/* Check the bitdepth of the surface */
if(fmt->BitsPerPixel!=8){
fprintf(stderr, "Not an 8-bit surface.
");
return(-1);
}
/* Lock the surface */
SDL_LockSurface(surface);
/* Get the topleft pixel */
index=*(Uint8 *)surface->pixels;
color=fmt->palette->colors[index];
/* Unlock the surface */
SDL_UnlockSurface(surface);
printf("Pixel Color-> Red: %d, Green: %d, Blue: %d. Index: %d
",
color->r, color->g, color->b, index);
.
.
Pixel formats above 8-bit are an entirely different experience. They are considered to be "TrueColor" formats and the color information is
stored in the pixels themselves, not in a palette. The mask, shift and loss fields tell us how the color information is encoded. The mask
fields allow us to isolate each color component, the shift fields tell us the number of bits to the right of each component in the pixel
value and the loss fields tell us the number of bits lost from each component when packing 8-bit color component in a pixel.
/* Extracting color components from a 32-bit color value */
SDL_PixelFormat *fmt;
SDL_Surface *surface;
Uint32 temp, pixel;
Uint8 red, green, blue, alpha;
.
.
.
fmt=surface->format;
SDL_LockSurface(surface);
pixel=*((Uint32*)surface->pixels);
SDL_UnlockSurface(surface);
/* Get Red component */
temp=pixel&fmt->Rmask; /* Isolate red component */
temp=temp>>fmt->Rshift;/* Shift it down to 8-bit */
temp=temp<<fmt->Rloss; /* Expand to a full 8-bit number */
red=(Uint8)temp;
/* Get Green component */
temp=pixel&fmt->Gmask; /* Isolate green component */
temp=temp>>fmt->Gshift;/* Shift it down to 8-bit */
temp=temp<<fmt->Gloss; /* Expand to a full 8-bit number */
green=(Uint8)temp;
/* Get Blue component */
temp=pixel&fmt->Bmask; /* Isolate blue component */
temp=temp>>fmt->Bshift;/* Shift it down to 8-bit */
temp=temp<<fmt->Bloss; /* Expand to a full 8-bit number */
blue=(Uint8)temp;
/* Get Alpha component */
temp=pixel&fmt->Amask; /* Isolate alpha component */
temp=temp>>fmt->Ashift;/* Shift it down to 8-bit */
temp=temp<<fmt->Aloss; /* Expand to a full 8-bit number */
alpha=(Uint8)temp;
printf("Pixel Color -> R: %d, G: %d, B: %d, A: %d
", red, green, blue, alpha);
.
.
.
SEE ALSO
SDL_Surface, SDL_MapRGB
SDL Tue 11 Sep 2001, 23:01 SDL_PixelFormat(3)