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Re: Trying to read values from a file into arrays (bash)

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On 2012-04-30, deltaquattro@gmail.com wrote:
> Hi,
>
> I'm trying to read the columns in the file foobar.fo:
>
> 073 1.819
> 085 2.187
> 100 2.439
> 115 2.879
>
> into the array variables dir and mflow. However, I'm having some difficulties:
...
> is there a way to read directly the whole
> columns into dir and mflow, instead than going through a while loop?

dir=( $(cut -f1 foobar.fo ) )
mflow=( $(cut -f2 foobar.fo ) )

   Or, with bash4:

mapfile -t dir < <(cut -f1 foobar.fo)
mapfile -t mflow < <(cut -f2 foobar.fo)


> Also, I'd prefer to use awk instead than cut

  Why? It's overkill for the job.

-- 
   Chris F.A. Johnson, author           <http://shell.cfajohnson.com/>
   ===================================================================
   Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress)
   Pro Bash Programming: Scripting the GNU/Linux Shell (2009, Apress)

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Thread

Trying to read values from a file into arrays (bash) deltaquattro@gmail.com - 2012-04-30 16:42 -0700
  Re: Trying to read values from a file into arrays (bash) Janis Papanagnou <janis_papanagnou@hotmail.com> - 2012-05-01 08:44 +0200
    Re: Trying to read values from a file into arrays (bash) deltaquattro@gmail.com - 2012-05-02 08:48 -0700
      Re: Trying to read values from a file into arrays (bash) Barry Margolin <barmar@alum.mit.edu> - 2012-05-02 12:15 -0400
        Re: Trying to read values from a file into arrays (bash) deltaquattro@gmail.com - 2012-05-04 01:49 -0700
          Re: Trying to read values from a file into arrays (bash) Barry Margolin <barmar@alum.mit.edu> - 2012-05-04 10:12 -0400
      Re: Trying to read values from a file into arrays (bash) Janis Papanagnou <janis_papanagnou@hotmail.com> - 2012-05-02 18:36 +0200
        Re: Trying to read values from a file into arrays (bash) Janis Papanagnou <janis_papanagnou@hotmail.com> - 2012-05-02 18:48 +0200
          Re: Trying to read values from a file into arrays (bash) deltaquattro@gmail.com - 2012-05-04 02:10 -0700
  Re: Trying to read values from a file into arrays (bash) "Chris F.A. Johnson" <cfajohnson@gmail.com> - 2012-05-02 20:44 -0400
    Re: Trying to read values from a file into arrays (bash) deltaquattro@gmail.com - 2012-05-04 02:05 -0700

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