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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 X11R4

realpath

REALPATH(1)                                                        User Commands                                                       REALPATH(1)

NAME

       realpath - print the resolved path

SYNOPSIS

       realpath [OPTION]... FILE...

DESCRIPTION

       Print the resolved absolute file name; all but the last component must exist

       -e, --canonicalize-existing
              all components of the path must exist

       -m, --canonicalize-missing
              no path components need exist or be a directory

       -L, --logical
              resolve '..' components before symlinks

       -P, --physical
              resolve symlinks as encountered (default)

       -q, --quiet
              suppress most error messages

       --relative-to=DIR
              print the resolved path relative to DIR

       --relative-base=DIR
              print absolute paths unless paths below DIR

       -s, --strip, --no-symlinks
              don't expand symlinks

       -z, --zero
              end each output line with NUL, not newline

       --help display this help and exit

       --version
              output version information and exit

AUTHOR

       Written by Padraig Brady.

REPORTING BUGS

       GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
       Report realpath translation bugs to <http://translationproject.org/team/>

COPYRIGHT

       Copyright (C) 2017 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       readlink(1), readlink(2), realpath(3)

       Full documentation at: <http://www.gnu.org/software/coreutils/realpath>
       or available locally via: info '(coreutils) realpath invocation'

GNU coreutils 8.28                                                 January 2018                                                        REALPATH(1)
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