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Full Discussion: Putting strings into positioning array in loop
Top Forums Shell Programming and Scripting Putting strings into positioning array in loop Post 303022228 by annacreek on Tuesday 28th of August 2018 11:26:03 AM
Old 08-28-2018
Maybe.

Here is the debug output as code is being processed.

It looks to me that each pass add next string and than debug prints the whole file.

But it builds multiple "strings"and it really does not matter how.

I did add the "index" so I can "see" the progress.


Thanks



Code:
+ set -- 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description '
+ echo 'index  10'
index  10
+ for i in {0..16..2}
+ set -- 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description '
+ echo 'index  12'
index  12
+ for i in {0..16..2}
+ set -- 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description '
+ echo 'index  14'
index  14
+ for i in {0..16..2}
+ set -- 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description ' 'CLI command' 'CLI command description '
+ echo 'index  16'
index  16
+ pause
+ read -p 'Press [Enter] key to continue...'
Press [Enter] key to continue...

------ Post updated at 10:26 AM ------

OK. the code does the job. Many thanks.


Minor problem - now I need to copy the positioning array to a file.

This simple verification code does reads the array in reverse.
It would make things easier if I could add the lines into the file starting with 1 and go up.



I suppose I can change the while[condition] and check for # for != 16 in this case.

Or can I start from $# = 1 and shift "up" ?


Code:
testLoopAddition(){
  55 for i in {0..16..2}
  56 do 
  57    set -- "$@" "CLI command" "CLI command description "
  58    echo "index  $i"     
  59 done
  62 echo "In reverse start with $# positional parameters"
  63 # while positional parameter not empty 
  64 while [ "$1" != "" ]; do
  65     echo "Parameter $# equals $1"
          copy $1 to file here 

  68     shift
  69 done

 

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LEARN ABOUT DEBIAN

excel::template::container::loop

Excel::Template::Container::Loop(3pm)			User Contributed Perl Documentation		     Excel::Template::Container::Loop(3pm)

NAME

       Excel::Template::Container::Loop - Excel::Template::Container::Loop

PURPOSE

       To provide looping

NODE NAME

       LOOP

INHERITANCE

       Excel::Template::Container

ATTRIBUTES

       o   NAME

	   This is the name of the loop. It's used to identify within the parameter set what variables to expose to the children nodes each
	   iteration.

CHILDREN

       None

EFFECTS

       None

DEPENDENCIES

       None

USAGE

	 <loop name="LOOPY">
	   ... Children here ...
	 </loop>

       In the above example, the children nodes would have access to the LOOPY array of hashes as parameters. Each iteration through the array
       would expose a different hash of parameters to the children.

       These loops work just like HTML::Template's loops. (I promise I'll give more info here!)

       There is one difference - I prefer using Perl-like scoping, so accessing of variables outside the LOOP scope from within is perfectly
       acceptable. You can also hide outside variables with inner values, if you desire, just like Perl.

AUTHOR

       Rob Kinyon (rob.kinyon@gmail.com)

SEE ALSO

perl v5.14.2							    2012-04-29				     Excel::Template::Container::Loop(3pm)
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