Creating bash array name from variable


 
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Old 02-27-2012
Creating bash array name from variable

Hi gurus,

I need to create arrays from variables, via a loop.

The issue I have is with the array name creation. How do I use a variable to define an array?

I want to do something like
declare -a $H
where $H is my loop variable.

I then need to add items to each array I've created, something like this
$H=( ${$H[@]} "$I")

$I is the variable I'm using to loop in the array items.

I'm guessing that I'll need to use eval but nothing I've tried works. Escaping non-printable characters doesn't work either.

I can define an empty array using the $H variable, but I'm unable to add items to it or print out the full array item list.
I have no problems when defining a non-variable array name, but I need to create over 100 lookup tables, with number of items ranging from 1 to 10 -15 for each array, all from loop.

Any suggestions would be most welcolmed
 
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set(n)							       Tcl Built-In Commands							    set(n)

__________________________________________________________________________________________________________________________________________________

NAME
set - Read and write variables SYNOPSIS
set varName ?value? _________________________________________________________________ DESCRIPTION
Returns the value of variable varName. If value is specified, then set the value of varName to value, creating a new variable if one doesn't already exist, and return its value. If varName contains an open parenthesis and ends with a close parenthesis, then it refers to an array element: the characters before the first open parenthesis are the name of the array, and the characters between the parentheses are the index within the array. Otherwise varName refers to a scalar variable. Normally, varName is unqualified (does not include the names of any containing namespaces), and the variable of that name in the current namespace is read or written. If varName includes names- pace qualifiers (in the array name if it refers to an array element), the variable in the specified namespace is read or written. If no procedure is active, then varName refers to a namespace variable (global variable if the current namespace is the global namespace). If a procedure is active, then varName refers to a parameter or local variable of the procedure unless the global command was invoked to declare varName to be global, or unless a variable command was invoked to declare varName to be a namespace variable. SEE ALSO
expr(n), proc(n), trace(n), unset(n) KEYWORDS
read, write, variable Tcl set(n)