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Full Discussion: Convert Relative path to Absolute path, without changing directory to the file location.
Top Forums UNIX for Beginners Questions & Answers Convert Relative path to Absolute path, without changing directory to the file location. Post 303041744 by Sekhar419 on Tuesday 3rd of December 2019 12:00:37 PM
Old 12-03-2019
Convert Relative path to Absolute path, without changing directory to the file location.
Hello,

I am creating a file with all the source folders included in my git branch, when i grep for the used source, i found source included as relative path instead of absolute path, how can convert relative path to absolute path without changing directory to that folder and using readlink -f ?

Code:
grep -r "src +=" --include=*.spec $REPOROOT

src += ../src
src += ../stubs
src += ../../dataLU/src
src += ../../src   
src += ../src
src += ../export/src
src += ../src
src += ../src       
src += ../../src    
src += ../src

Code:
grep -r "src +=" --include=*.spec $REPOROOT | cut -d "=" -f2

../src
../stubs
../../dataLU/src
../../src    
../src       
../export/src
../src
../src      
../../src   
../src

i tried using the below two ways
Code:
echo "$(cd "$(dirname "../../dataLu/src")"; pwd)/$(basename "../../dataLu/src")"
readlink -f ../../dataLu/src

while this worked, i have to change directory to the location of the spec file there are more than 1000 spec files, hence i want to get the path from the top of the repo without changing directory

desired results are
Code:
a/src
b/src
x/y/dataLu/src

Thank you!

OS: linux SUSE (I don't have realpath)
Shell : bash
 

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LEARN ABOUT OPENSOLARIS

mlib_imagemulalpha

mlib_ImageMulAlpha(3MLIB)				    mediaLib Library Functions					 mlib_ImageMulAlpha(3MLIB)

NAME

       mlib_ImageMulAlpha - alpha channel multiplication

SYNOPSIS

       cc [ flag... ] file... -lmlib [ library... ]
       #include <mlib.h>

       mlib_status mlib_ImageMulAlpha(mlib_image *dst, const mlib_image *src,
	    mlib_s32 cmask);

DESCRIPTION

       The mlib_ImageMulAlpha() function multiplies color channels by the alpha channel on a pixel by pixel basis.

       For the MLIB_BYTE image, it uses the following equation:

	 dst[x][y][c] = src[x][y][c] * src[x][y][a] * 2**(-8)

       For the MLIB_SHORT image, it uses the following equation:

	 dst[x][y][c] = src[x][y][c] * src[x][y][a] * 2**(-15)

       For the MLIB_USHORT image, it uses the following equation:

	 dst[x][y][c] = src[x][y][c] * src[x][y][a] * 2**(-16)

       For the MLIB_INT image, it uses the following equation:

	 dst[x][y][c] = src[x][y][c] * src[x][y][a] * 2**(-31)

       where c and a are the indices for the color channels and the alpha channel, respectively, so c != a.

PARAMETERS

       The function takes the following arguments:

       dst	Pointer to destination image.

       src	Pointer to source image.

       cmask	Channel  mask  to indicate the alpha channel. Each bit of the mask represents a channel in the image. The channel corresponding to
		the 1 bit of cmask is the alpha channel.

RETURN VALUES

       The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Committed 		   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       mlib_ImageMulAlpha_Inp(3MLIB), mlib_ImageMulAlpha_Fp(3MLIB), mlib_ImageMulAlpha_Fp_Inp(3MLIB), attributes(5)

SunOS 5.11							    2 Mar 2007						 mlib_ImageMulAlpha(3MLIB)
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