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Full Discussion: Get the return value and get the output to $results
Top Forums Shell Programming and Scripting Get the return value and get the output to $results Post 302912335 by Corona688 on Thursday 7th of August 2014 11:31:03 AM
Old 08-07-2014
Quote:
Originally Posted by yanglei_fage
Below it's logic

val ---> is the return value of $@
results ----> is the output of $@
You forgot to answer my question.

Why are you doing this?

What are you trying to accomplish?
Quote:
but the results here is mess, how can I handle it, can we use "file" to store the result or better way ?
There is quite probably a better way to do whatever you're trying to do. But I wouldn't know what it is, because:

I don't yet know why you're doing this.

I don't yet know what you're trying to accomplish.

All I know is that you've picked the "loading code into shell variables and brute-forcing it with eval" method method of problem solving, a very common introductory mistake... And have phrased your question so narrowly that the only possible answer at present is "brute force eval" -- another very common introductory mistake... Ditch the "loading shell code into variables" model and there could be a whole family of algorithms to deal with your problem.
Last edited by Corona688; 08-07-2014 at 12:53 PM..
 

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LEARN ABOUT OSX

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

CATEGORY

       Page Parser Generator

COPYRIGHT

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

page									1.0							page_util_quote(n)
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