Bash - Loading a command's output line by line into an array Post: 302556885

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Top Forums Shell Programming and Scripting Bash - Loading a command's output line by line into an array Post 302556885 by Azrael on Tuesday 20th of September 2011 02:59:59 AM

09-20-2011

Registered User

Bash - Loading a command's output line by line into an array

I have been trying this a lot of different ways and haven't found too much online. Here's what I've got so far:

Code:

j=0 
declare -a first 
zero=(`cat $tmpfile`)          
      
     for i in "${zero[@]}"         
     do                 
           command $i >> "${first[$j]}"                 
           (( j = j + 1 ))                 
           sleep 2                  

     done < $tmpfile

Basically $i would just be a parameter for the command taken from a temp file. The command would output many single column lines of text that I would like to store line by line in the array elements of first[*] (or $j). While I've found tons on storing to a file and then to an array, I want to start skipping the temp files and just putting output in the arrays. Is this possible in Bash?

Azrael

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LEARN ABOUT HPUX

tmpfile

tmpfile(3S)															       tmpfile(3S)

NAME

       tmpfile() - create a temporary file

SYNOPSIS

DESCRIPTION

       creates	a temporary file by generating a name through (see tmpnam(3S)), and returns a corresponding pointer.  If the file cannot be opened
       a NULL pointer is returned.  The file is automatically deleted when the process using it terminates.  The file is opened for update

   Notes
       On HP-UX systems, the mode is equivalent to the mode.

ERRORS

       The function will fail if:

	      [EOVERFLOW]	       The named file is a regular file and the size of the file cannot be represented correctly in an	object	of
				       size in this environment.

       Additional values may be set by the underlying function (see fopen(3S)).

SEE ALSO

       creat(2), unlink(2), mktemp(3C), fopen(3S), fgetpos64(3S), tmpnam(3S), thread_safety(5).

STANDARDS CONFORMANCE

																       tmpfile(3S)