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Shell Programming and Scripting
expanding dotted paths to absolute ones in bash or sh
Post 77774 by TanRanger on Tuesday 12th of July 2005 06:06:12 PM
07-12-2005
expanding dotted paths to absolute ones in bash or sh
I have a little script to help me manage a gallery of image files. It makes symbolic links to every file in and below the current directory, placing them in a target directory which is passed to the script as a parameter. Unfortunately, the script pukes when I pass a parameter that contains dotted paths.
$ linkall /home/joe/foo
$ linkall ~/foo
work beautifully. The latter one works because the parameter is expanded before it is passed.
But,
$ linkall ../foo
pukes.
Does anyone know of a way to expand the passed parameter into an absolute path? I've tried everything I can think of. I'm having a hard time even thinking of the right query to Google for. Whenever that happens, I look for a forum.
It seems to me that I'm probably looking for some code that gets used in a lot of scripts; basically boilerplate that I've just never come across yet.
Other than by strictly using absolute paths, I can't think of any workarounds off the top of my head.
I can post the script if that would help. It's 68 lines.
$ linkall /home/joe/foo
$ linkall ~/foo
work beautifully. The latter one works because the parameter is expanded before it is passed.
But,
$ linkall ../foo
pukes.
Does anyone know of a way to expand the passed parameter into an absolute path? I've tried everything I can think of. I'm having a hard time even thinking of the right query to Google for. Whenever that happens, I look for a forum.
It seems to me that I'm probably looking for some code that gets used in a lot of scripts; basically boilerplate that I've just never come across yet.Other than by strictly using absolute paths, I can't think of any workarounds off the top of my head.
I can post the script if that would help. It's 68 lines.
Last edited by TanRanger; 07-12-2005 at 07:18 PM..
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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)