/usr/share/doc/bash/examples/functions/array-to-string is in bash-doc 4.3-6ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | #! /bin/bash
# Format: array_to_string vname_of_array vname_of_string separator
array_to_string()
{
(( ($# < 2) || ($# > 3) )) && {
"$FUNCNAME: usage: $FUNCNAME arrayname stringname [separator]"
return 2
}
local array=$1 string=$2
((3==$#)) && [[ $3 = ? ]] && local IFS="${3}${IFS}"
eval $string="\"\${$array[*]}\""
return 0
}
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