Bash arrays: appending and prepending to each element in array -

i'm trying build long command involving find. have array of directories want ignore, , want format directory command.

basically, want transform array:

declare -a ignore=(archive crl cfg) 

into this:

-o -path "$dir/archive" -prune -o -path "$dir/crl" -prune -o -path "$dir/cfg" -prune 

this way, can add directories array, , find command adjust accordingly.

so far, figured out how prepend or append using

${ignore[@]/#/-o -path \"\$dir/} ${ignore[@]/%/\" -prune} 

but don't know how combine these , simultaneously prepend , append each element of array.

you cannot simultaneously. fortunately, not need to:

ignore=( archive crl cfg                    ) ignore=( "${ignore[@]/%/\" -prune}"         ) ignore=( "${ignore[@]/#/-o -path \"\$dir/}" )  echo ${ignore[@]} 

note parentheses , double quotes - make sure array contains 3 elements after each substitution, if there spaces involved.