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Full Discussion: Parameter expansion not working for all strings...
Top Forums Shell Programming and Scripting Parameter expansion not working for all strings... Post 302570178 by Corona688 on Wednesday 2nd of November 2011 02:33:12 PM
Old 11-02-2011
I do this to get that exact string:

Code:
STRING=$(echo " 2E 2F 4A 6F 73 C3 A9 20 47 6F 6E 7A C3 A1 6C 65 7A 20 2D 20 49 6E 20 4F 75 72 20 4E 61 74 75 72 65 2F 30 36 20 41 62 72 61 6D 2E 66 6C 61 63 0A" |
        sed 's/ /\\\\x/g' | xargs echo -e)

echo "${STRING//[^a-z]/}"
osonzleznuraturebramflac
$ bash --version
GNU bash, version 4.1.7(2)-release (i686-pc-linux-gnu)
Copyright (C) 2009 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.
$

It ought to substitute, I don't know why yours doesn't. Perhaps a bug, or an older shell with limited features.
 

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LEARN ABOUT SUSE

true

TRUE(1) 							   User Commands							   TRUE(1)

NAME

       true - do nothing, successfully

SYNOPSIS

       true [ignored command line arguments]
       true OPTION

DESCRIPTION

       Exit with a status code indicating success.

       --help display this help and exit

       --version
	      output version information and exit

       NOTE: your shell may have its own version of true, which usually supersedes the version described here.	Please refer to your shell's docu-
       mentation for details about the options it supports.

AUTHOR

       Written by Jim Meyering.

REPORTING BUGS

       Report true bugs to bug-coreutils@gnu.org
       GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
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COPYRIGHT

       Copyright (C) 2009 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

       The full documentation for true is maintained as a Texinfo manual.  If the info and true programs are properly installed at your site,  the
       command

	      info coreutils 'true invocation'

       should give you access to the complete manual.

GNU coreutils 7.1						     July 2010								   TRUE(1)
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