fix array syntax for bash

  -   wmops_all_global="wmops/log_wmops_all.txt"

  -   ram_all_global="wmops/log_ram_all.txt"

  -   if [ -f "${wmops_all_global}" ] && [ ! -f "wmops/log_wmops_all_level_1.txt" ]; then

  -     for suffix in "level_1 level_2 level_3 rate_sw"; do

  -     declare -a suffixes=("level_1" "level_2" "level_3" "rate_sw")

  -     for suffix in "${suffixes[@]}"; do

  -       cp ${wmops_all_global} wmops/log_wmops_all_${suffix}.txt

  -       cp ${ram_all_global} wmops/log_ram_all_${suffix}.txt

  -     done