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Top Forums Shell Programming and Scripting Creating bash array name from variable Post 302602613 by Chubler_XL on Monday 27th of February 2012 10:50:20 PM
Old 02-27-2012
Perhaps this might help:

Code:
H=boats
eval $H'[1]="Testing"'
eval echo '${'$H'[1]}'
echo ${boats[1]}

Thing is, that eval ends up running a sub shell so it probably won't be real fast to assign 500 arrays of 10-15 items each.



Another thing you could try and do is write out a whole head of assign statements to a file and then source it into the current shell

Code:
H=fish
echo $H'[1]="carp"' > /tmp/asgn_$$
echo $H'[2]="cod"' >> /tmp/asgn_$$
echo $H'[3]="marlin"' >> /tmp/asgn_$$
 
. /tmp/asgn_$$
rm -f /tmp/asgn_$$
 
echo ${fish[2]}


Last edited by Chubler_XL; 02-27-2012 at 11:56 PM..
 

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COMPACT(3)								 1								COMPACT(3)

compact - Create array containing variables and their values

SYNOPSIS
array compact (mixed $varname1, [mixed $...]) DESCRIPTION
Creates an array containing variables and their values. For each of these, compact(3) looks for a variable with that name in the current symbol table and adds it to the output array such that the variable name becomes the key and the contents of the variable become the value for that key. In short, it does the opposite of extract(3). Any strings that are not set will simply be skipped. PARAMETERS
o $varname1 -compact(3) takes a variable number of parameters. Each parameter can be either a string containing the name of the variable, or an array of variable names. The array can contain other arrays of variable names inside it; compact(3) handles it recursively. RETURN VALUES
Returns the output array with all the variables added to it. EXAMPLES
Example #1 compact(3) example <?php $city = "San Francisco"; $state = "CA"; $event = "SIGGRAPH"; $location_vars = array("city", "state"); $result = compact("event", "nothing_here", $location_vars); print_r($result); ?> The above example will output: Array ( [event] => SIGGRAPH [city] => San Francisco [state] => CA ) NOTES
Note Gotcha Because variable variables may not be used with PHP's Superglobal arrays within functions, the Superglobal arrays may not be passed into compact(3). SEE ALSO
extract(3). PHP Documentation Group COMPACT(3)
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