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Full Discussion: getting full path from relative path
Top Forums Shell Programming and Scripting getting full path from relative path Post 302110723 by polypus on Wednesday 14th of March 2007 08:56:09 PM
Old 03-14-2007
getting full path from relative path
given a relative path, how do i convert it into a full one. i.e. if i am in

/home/polypus

and i am given foo/bar then to get a full path i can just concatinate it with pwd, but what if i am given "../mama"

how do i programmatically convert:

/home/polypus and ../mama into /home/mama

in a way that will always work no matter what relative path is passed?

my first thought is to just cd to the directory and set a variable

cd $rev_path
full_path=`pwd`
cd $original_dir

it seems there must be a unix command which does this more elegantly?

thanks
 

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LEARN ABOUT DEBIAN

shtool-mkln

SHTOOL-MKLN.TMP(1)					      GNU Portable Shell Tool						SHTOOL-MKLN.TMP(1)

NAME

       shtool-mkln - GNU shtool enhanced ln(1) replacement

SYNOPSIS

       shtool mkln [-t|--trace] [-f|--force] [-s|--symbolic] src-path [src-path ...]  dst-path

DESCRIPTION

       This is a ln(1) style command. It is enhanced to provide automatic calculation and usage of relative links with the shortest possible path,
       if possible. Usually if src-path and dst-path are not absolute paths or at least they share a common prefix except the root directory
       (``"/"''). When more than one src-path is specified, all of them are linked into dst-path.

OPTIONS

       The following command line options are available.

       -t, --trace
	   Enable the output of the essential shell commands which are executed.

       -f, --force
	   Force the creation of the link even if it exists. Default is to fail with error.

       -s, --symbolic
	   Create a symbolic link instead of a hard-link.

EXAMPLE

	#   shell script
	shtool mkln -s foo/bar baz/quux

HISTORY

       The GNU shtool fixperm command was originally written by Ralf S.  Engelschall <rse@engelschall.com> in 1998 for ePerl.

SEE ALSO

       shtool(1), ln(1).

18-Jul-2008							   shtool 2.0.8 						SHTOOL-MKLN.TMP(1)
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