Parsing Columns From Files WITHOUT awk

# awk is cool - but sometimes jumping from bash to awk to bash gets clunky.
# We don't actually have use awk - we can just leverage bash internal parsing.

# This is a classic awk example but now we have the really useful function map
# which lets us do the same time in bash.

function size_name {
    print $5 $9
}


function map {
    local l;
    while read -r l; do
        $1 $l;
    done
}

ls -l SonicField/src/cpp/lib/ | map size_name | column -t
168       build.sh
2108      stream.hpp
15676048  stream.hpp_out

# Let's try this as a one liner:
_tmp () { print $5 $9; }; ls -l SonicField/src/cpp/lib/ | map _tmp  | column -t

# awk is simpler but not by much if we assume map is part of your utils
ls -l SonicField/src/cpp/lib/ | awk '{print $5, $9}'  | column -t
168       build.sh
2108      stream.hpp
15676048  stream.hpp_out

# But remember that awk is a separate process space so you do not 
# have access to the bash state in the same way. For example:
function add_size { [[ $5 != '' ]] && ((size+=$5)); }
function count_sizes { size=0; map <&0 add_size; print $size; }
ls -l SonicField/src/cpp/lib/ | count_sizes
15678324