As I know:
FNR: The ordinal number of the current record in the current file.
NR: The ordinal number of the current record from the start of input.
I don't understand really differency between NR and FNR. Who can explain it for me? And give me an example.
Thanks (1 Reply)
Multiple versions of this are probably in this section, but could not find one just right for me. My code gives me a zero byte file.
Problem:
foo
553
403
448
492
451
403
456
560
527
534
529
550
500
447
404 (6 Replies)
Hi Guys,
I have two files:
f1:
A B C D E F G H
f2:
A X Y Z
f1 has 48000 lines, and f2 has 68. I have been matching f1 $3 to f2 $1, and getting f3:
A A B C D E F G
I would like f3 too look like this:
A X Y Z A B C D E F G (2 Replies)
cat file1
1 a b c
2 d e f
3 a f r
cat file2
a c e
output should be
1
3
means:
if field 1 of file2 matches filed 2 of file1 then print field 1 of file1
I know that it can be done using awk NR=FNR.
But not able to acheive it.
Thanks in advance. (9 Replies)
awk -F'' 'FNR==NR {a=$2; next} {$1=a} 1' $useralias ${entries} >> ${entries}_2
Hi,
Is there anyway to alter this command so that if it does not find a match it will just leave the line alone instead of replacing what it doesn't find with a blank space? (4 Replies)
This has been asked and answered hundreds of times, but I can't understand the syntax of awk's NR==FNR trick for merging files and printing the correct columns.
Here's my File 1
1 rs8179466 224176 A ADD 1037 1.066 0.1421 0.8065 1.408 0.4468 ... (3 Replies)
Example:
$ cat file1
2
3$ cat file2
1
2
3
4
5
6The following awk script works like a charm, NR==FNR is true for file1, the remainder runs for file2:
awk '
NR==FNR {A; next}
($1 in A)
' file1 file2
2
3Now have an empty file1:
>file1and run the awk script again.
The result is empty... (8 Replies)
Hi,
I have an issue with the below script
nawk 'NR==FNR{a=$4" "$5}NR>FNR{print NF?$0:a"\n";if(/^cn:/) x=$0}' FS="" in1.txt in2.txt > out1.txt
It is taking too long to get a string from in1.text, search for the string in in2.txt and create a new file out1.txt.
Is there any alternative way we... (1 Reply)
To merge mutiple *.tab files as:
file1.tab
rs1 A A
rs2 A A
rs3 C C
rs4 C Cfile2.ind
rs1 T T
rs2 T T
rs3 G G
rs4 G Gand file3.tab
rs1 B B
rs2 B B
rs3 L L
rs4 L LOutput：
file1.tab file2.tab file3.tab
AA TT BB
AA TT BB
CC GG LL
CC GG ... (4 Replies)
Dear All,
I have below two files with me:
file 1:
A|B
E|F
C|D
file 2:
A|X|Y
R|T|I
C|V|N
I want to compare 1st column of each file and than print both columns of file 1 and column 2 and 3 of file 2
Sample required output in regards to above files is below:
A|B|X|Y
C|D|V|N (5 Replies)
Discussion started by: Nebula
5 Replies
LEARN ABOUT DEBIAN
sdl::gfx::imagefilter
pods::SDL::GFX::ImageFilter(3pm) User Contributed Perl Documentation pods::SDL::GFX::ImageFilter(3pm)NAME
SDL::GFX::ImageFilter - image filtering functions
CATEGORY
TODO, GFX
METHODS
MMX_detect
int gfx_image_MMX_detect() CODE: SDL_imageFilterMMXdetect();
MMX_off
void gfx_image_MMX_off() CODE: SDL_imageFilterMMXoff();
MMX_on
void gfx_image_MMX_on() CODE: SDL_imageFilterMMXon();
add
int gfx_image_add(Src1, Src2, Dest, length) unsigned char *Src1 unsigned char *Src2 unsigned char *Dest int length
CODE: RETVAL = SDL_imageFilterAdd(Src1, Src2, Dest, length); OUTPUT: RETVAL
mean
int gfx_image_mean(Src1, Src2, Dest, length) unsigned char *Src1 unsigned char *Src2 unsigned char *Dest int length
CODE: RETVAL = SDL_imageFilterMean(Src1, Src2, Dest, length); OUTPUT: RETVAL
sub
int gfx_image_sub(Src1, Src2, Dest, length) unsigned char *Src1 unsigned char *Src2 unsigned char *Dest int length
CODE: RETVAL = SDL_imageFilterSub(Src1, Src2, Dest, length); OUTPUT: RETVAL
abs_diff
int gfx_image_abs_diff(Src1, Src2, Dest, length) unsigned char *Src1 unsigned char *Src2 unsigned char *Dest int length
CODE: RETVAL = SDL_imageFilterAbsDiff(Src1, Src2, Dest, length); OUTPUT: RETVAL
mult
int gfx_image_mult(Src1, Src2, Dest, length) unsigned char *Src1 unsigned char *Src2 unsigned char *Dest int length
CODE: RETVAL = SDL_imageFilterMult(Src1, Src2, Dest, length); OUTPUT: RETVAL
mult_nor
int gfx_image_mult_nor(Src1, Src2, Dest, length) unsigned char *Src1 unsigned char *Src2 unsigned char *Dest int length
CODE: RETVAL = SDL_imageFilterMultNor(Src1, Src2, Dest, length); OUTPUT: RETVAL
mult_div_by_2
int gfx_image_mult_div_by_2(Src1, Src2, Dest, length) unsigned char *Src1 unsigned char *Src2 unsigned char *Dest int
length CODE: RETVAL = SDL_imageFilterMultDivby2(Src1, Src2, Dest, length); OUTPUT: RETVAL
mult_div_by_4
int gfx_image_mult_div_by_4(Src1, Src2, Dest, length) unsigned char *Src1 unsigned char *Src2 unsigned char *Dest int
length CODE: RETVAL = SDL_imageFilterMultDivby4(Src1, Src2, Dest, length); OUTPUT: RETVAL
bit_and
int gfx_image_bit_and(Src1, Src2, Dest, length) unsigned char *Src1 unsigned char *Src2 unsigned char *Dest int length
CODE: RETVAL = SDL_imageFilterBitAnd(Src1, Src2, Dest, length); OUTPUT: RETVAL
bit_or
int gfx_image_bit_or(Src1, Src2, Dest, length) unsigned char *Src1 unsigned char *Src2 unsigned char *Dest int length
CODE: RETVAL = SDL_imageFilterBitOr(Src1, Src2, Dest, length); OUTPUT: RETVAL
div
int gfx_image_div(Src1, Src2, Dest, length) unsigned char *Src1 unsigned char *Src2 unsigned char *Dest int length
CODE: RETVAL = SDL_imageFilterDiv(Src1, Src2, Dest, length); OUTPUT: RETVAL
bit_negation
int gfx_image_bit_negation(Src1, Dest, length) unsigned char *Src1 unsigned char *Dest int length CODE:
RETVAL = SDL_imageFilterBitNegation(Src1, Dest, length); OUTPUT: RETVAL
add_byte
int gfx_image_add_byte(Src1, Dest, length, C) unsigned char *Src1 unsigned char *Dest int length unsigned char C
CODE: RETVAL = SDL_imageFilterAddByte(Src1, Dest, length, C); OUTPUT: RETVAL
add_uint
int gfx_image_add_uint(Src1, Dest, length, C) unsigned char *Src1 unsigned char *Dest int length unsigned int C
CODE: RETVAL = SDL_imageFilterAddUint(Src1, Dest, length, C); OUTPUT: RETVAL
add_byte_to_half
int gfx_image_add_byte_to_half(Src1, Dest, length, C) unsigned char *Src1 unsigned char *Dest int length unsigned char
C CODE: RETVAL = SDL_imageFilterAddByteToHalf(Src1, Dest, length, C); OUTPUT: RETVAL
sub_byte
int gfx_image_sub_byte(Src1, Dest, length, C) unsigned char *Src1 unsigned char *Dest int length unsigned char C
CODE: RETVAL = SDL_imageFilterSubByte(Src1, Dest, length, C); OUTPUT: RETVAL
sub_uint
int gfx_image_sub_uint(Src1, Dest, length, C) unsigned char *Src1 unsigned char *Dest int length unsigned int C
CODE: RETVAL = SDL_imageFilterSubUint(Src1, Dest, length, C); OUTPUT: RETVAL
shift_right
int gfx_image_shift_right(Src1, Dest, length, N) unsigned char *Src1 unsigned char *Dest int length unsigned char N
CODE: RETVAL = SDL_imageFilterShiftRight(Src1, Dest, length, N); OUTPUT: RETVAL
shift_right_uint
int gfx_image_shift_right_uint(Src1, Dest, length, N) unsigned char *Src1 unsigned char *Dest int length unsigned char
N CODE: RETVAL = SDL_imageFilterShiftRightUint(Src1, Dest, length, N); OUTPUT: RETVAL
mult_by_byte
int gfx_image_mult_by_byte(Src1, Dest, length, C) unsigned char *Src1 unsigned char *Dest int length unsigned char C
CODE: RETVAL = SDL_imageFilterMultByByte(Src1, Dest, length, C); OUTPUT: RETVAL
shift_right_and_mult_by_byte
int gfx_image_shift_right_and_mult_by_byte(Src1, Dest, length, N, C) unsigned char *Src1 unsigned char *Dest int length
unsigned char N unsigned char C CODE: RETVAL = SDL_imageFilterShiftRightAndMultByByte(Src1, Dest, length, N, C);
OUTPUT: RETVAL
shift_left_byte
int gfx_image_shift_left_byte(Src1, Dest, length, N) unsigned char *Src1 unsigned char *Dest int length unsigned char N
CODE: RETVAL = SDL_imageFilterShiftLeftByte(Src1, Dest, length, N); OUTPUT: RETVAL
shift_left_uint
int gfx_image_shift_left_uint(Src1, Dest, length, N) unsigned char *Src1 unsigned char *Dest int length unsigned char N
CODE: RETVAL = SDL_imageFilterShiftLeftUint(Src1, Dest, length, N); OUTPUT: RETVAL
shift_left
int gfx_image_shift_left(Src1, Dest, length, N) unsigned char *Src1 unsigned char *Dest int length unsigned char N
CODE: RETVAL = SDL_imageFilterShiftLeft(Src1, Dest, length, N); OUTPUT: RETVAL
binarize_using_threshold
int gfx_image_binarize_using_threshold(Src1, Dest, length, T) unsigned char *Src1 unsigned char *Dest int length
unsigned char T CODE: RETVAL = SDL_imageFilterBinarizeUsingThreshold(Src1, Dest, length, T); OUTPUT:
RETVAL
clip_to_range
int gfx_image_clip_to_range(Src1, Dest, length, Tmin, Tmax) unsigned char *Src1 unsigned char *Dest int length unsigned
char Tmin unsigned char Tmax CODE: RETVAL = SDL_imageFilterClipToRange(Src1, Dest, length, Tmin, Tmax); OUTPUT:
RETVAL
normalize_linear
int gfx_image_normalize_linear(Src1, Dest, length, Cmin, Cmax, Nmin, Nmax) unsigned char *Src1 unsigned char *Dest int
length int Cmin int Cmax int Nmin int Nmax CODE: RETVAL = SDL_imageFilterNormalizeLinear(Src1, Dest,
length, Cmin, Cmax, Nmin, Nmax); OUTPUT: RETVAL
convolve_kernel_3x3_divide
int gfx_image_convolve_kernel_3x3_divide(Src, Dest, rows, columns, Kernel, Divisor) unsigned char *Src unsigned char *Dest
int rows int columns Sint16 *Kernel unsigned char Divisor CODE: RETVAL =
SDL_imageFilterConvolveKernel3x3Divide(Src, Dest, rows, columns, Kernel, Divisor); OUTPUT: RETVAL
convolve_kernel_5x5_divide
int gfx_image_convolve_kernel_5x5_divide(Src, Dest, rows, columns, Kernel, Divisor) unsigned char *Src unsigned char *Dest
int rows int columns Sint16 *Kernel unsigned char Divisor CODE: RETVAL =
SDL_imageFilterConvolveKernel5x5Divide(Src, Dest, rows, columns, Kernel, Divisor); OUTPUT: RETVAL
convolve_kernel_7x7_divide
int gfx_image_convolve_kernel_7x7_divide(Src, Dest, rows, columns, Kernel, Divisor) unsigned char *Src unsigned char *Dest
int rows int columns Sint16 *Kernel unsigned char Divisor CODE: RETVAL =
SDL_imageFilterConvolveKernel7x7Divide(Src, Dest, rows, columns, Kernel, Divisor); OUTPUT: RETVAL
convolve_kernel_9x9_divide
int gfx_image_convolve_kernel_9x9_divide(Src, Dest, rows, columns, Kernel, Divisor) unsigned char *Src unsigned char *Dest
int rows int columns Sint16 *Kernel unsigned char Divisor CODE: RETVAL =
SDL_imageFilterConvolveKernel9x9Divide(Src, Dest, rows, columns, Kernel, Divisor); OUTPUT: RETVAL
convolve_kernel_3x3_shift_right
int gfx_image_convolve_kernel_3x3_shift_right(Src, Dest, rows, columns, Kernel, NRightShift) unsigned char *Src unsigned char
*Dest int rows int columns Sint16 *Kernel unsigned char NRightShift CODE: RETVAL =
SDL_imageFilterConvolveKernel3x3ShiftRight(Src, Dest, rows, columns, Kernel, NRightShift); OUTPUT: RETVAL
convolve_kernel_5x5_shift_right
int gfx_image_convolve_kernel_5x5_shift_right(Src, Dest, rows, columns, Kernel, NRightShift) unsigned char *Src unsigned char
*Dest int rows int columns Sint16 *Kernel unsigned char NRightShift CODE: RETVAL =
SDL_imageFilterConvolveKernel5x5ShiftRight(Src, Dest, rows, columns, Kernel, NRightShift); OUTPUT: RETVAL
convolve_kernel_7x7_shift_right
int gfx_image_convolve_kernel_7x7_shift_right(Src, Dest, rows, columns, Kernel, NRightShift) unsigned char *Src unsigned char
*Dest int rows int columns Sint16 *Kernel unsigned char NRightShift CODE: RETVAL =
SDL_imageFilterConvolveKernel7x7ShiftRight(Src, Dest, rows, columns, Kernel, NRightShift); OUTPUT: RETVAL
convolve_kernel_9x9_shift_right
int gfx_image_convolve_kernel_9x9_shift_right(Src, Dest, rows, columns, Kernel, NRightShift) unsigned char *Src unsigned char
*Dest int rows int columns Sint16 *Kernel unsigned char NRightShift CODE: RETVAL =
SDL_imageFilterConvolveKernel9x9ShiftRight(Src, Dest, rows, columns, Kernel, NRightShift); OUTPUT: RETVAL
sobel_x
int gfx_image_sobel_x(Src, Dest, rows, columns) unsigned char *Src unsigned char *Dest int rows int columns CODE:
RETVAL = SDL_imageFilterSobelX(Src, Dest, rows, columns); OUTPUT: RETVAL
sobel_x_shift_right
int gfx_image_sobel_x_shift_right(Src, Dest, rows, columns, NRightShift) unsigned char *Src unsigned char *Dest int rows
int columns unsigned char NRightShift CODE: RETVAL = SDL_imageFilterSobelXShiftRight(Src, Dest, rows, columns,
NRightShift); OUTPUT: RETVAL
align_stack
void gfx_image_align_stack() CODE: SDL_imageFilterAlignStack();
restore_stack
void gfx_image_restore_stack() CODE: SDL_imageFilterRestoreStack();
AUTHORS
See "AUTHORS" in SDL.
perl v5.14.2 2012-05-28 pods::SDL::GFX::ImageFilter(3pm)
05-09-2014
