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Full Discussion: Nested double quotes won't work in my bash script?
Top Forums Shell Programming and Scripting Nested double quotes won't work in my bash script? Post 302795919 by Corona688 on Thursday 18th of April 2013 03:20:05 PM
Old 04-18-2013
Quote:
Originally Posted by superbbrr
But I get nothing returned. It's just all blank.
You cannot quote quotes and expect the shell to unquote them for you. When you execute $LSCMD, it takes those quotes literally. Leave them out...

You might also be in for another surprise -- $LSCMD will still substitute wildcards -- everywhere, because quotes have no meaning inside it. So if you have a file named 'files2pkg' in the current directory, it can shove that in instead of files*pkg. You can turn this off with set -f, so try this:

Code:
LSCMD="find /project/media/ -mindepth 2 -maxdepth 2 -name files*pkg"

set -f # Prevent * from expanding when $LSCMD splits.
ALL_PACKAGES=$( $LSCMD | sort 2>/dev/null)
set +f # Turn * expansion back on

Another thing you could do is use a function instead of storing things in a string. You wouldn't need to do any special quoting of anything, it'd just be code as usual.

Code:
lscmd() {
        find /project/media -mindepth 2 -maxdepth 2 -name "files*pkg"
}

ALL_PACKAGES=$( lscmd | sort 2>/dev/null )

Last edited by Corona688; 04-18-2013 at 04:26 PM..
 

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LEARN ABOUT SUSE

page_util_quote

page_util_quote(n)					      Parser generator tools						page_util_quote(n)

__________________________________________________________________________________________________________________________________________________

NAME

       page_util_quote - page character quoting utilities

SYNOPSIS

       package require page::util::quote  ?0.1?

       package require snit

       ::page::util::quote::unquote char

       ::page::util::quote::quote'tcl char

       ::page::util::quote::quote'tclstr char

       ::page::util::quote::quote'tclcom char

_________________________________________________________________

DESCRIPTION

       This package provides a few utility commands to convert characters into various forms.

API

       ::page::util::quote::unquote char
	      A  character,  as stored in an abstract syntax tree by a PEG processor (See the packages grammar::peg::interpreter, grammar::me, and
	      their relations), i.e. in some quoted form, is converted into the equivalent Tcl character. The character is returned as the  result
	      of the command.

       ::page::util::quote::quote'tcl char
	      This command takes a Tcl character (internal representation) and converts it into a string which is accepted by the Tcl parser, will
	      regenerate the character in question and is 7bit ASCII. The string is returned as the result of this command.

       ::page::util::quote::quote'tclstr char
	      This command takes a Tcl character (internal representation) and converts it into a string which is accepted by the Tcl  parser  and
	      will generate a human readable representation of the character in question.  The string is returned as the result of this command.

	      The  string  does not use any unprintable characters. It may use backslash-quoting. High UTF characters are quoted to avoid problems
	      with the still prevalent ascii terminals. It is assumed that the string will be used in a double-quoted environment.

       ::page::util::quote::quote'tclcom char
	      This command takes a Tcl character (internal representation) and converts it into a string which is accepted by the Tcl parser  when
	      used within a Tcl comment. The string is returned as the result of this command.

BUGS, IDEAS, FEEDBACK
       This  document,	will  undoubtedly  contain  bugs  and  other  problems.  Please report such in the category page of the Tcllib SF Trackers
       [http://sourceforge.net/tracker/?group_id=12883].  Please also report any ideas for enhancements you may have.

KEYWORDS

       page, parser generator, quoting, text processing

COPYRIGHT

       Copyright (c) 2007 Andreas Kupries <andreas_kupries@users.sourceforge.net>

page									1.0							page_util_quote(n)
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