Homebrew search from python module name (ShellScript)

$ pip list --format=legacy --outdated | cut -d' ' -f 1 | ./pip_homebrew_search
.sh
numpy numpy ✔
GDAL osgeo/osgeo4mac/gdal2-python ✔
Pillow homebrew/science/pillow ✔

#!/bin/sh
if [ $# == 0 ] && [ ! -p /dev/stdin ] ; then
  declare -a pymodules=(numpy GDAL Pillow)
else
  pymodules=(`cat "$@" | tr '\n' ' '`)
fi

brewModuleName () {
  GDAL="gdal2-python"
  eval mName=\$"${1}"
  [[ -z "${mName}" ]] && mName=`echo "$1" | tr '[A-Z]' '[a-z]'`
  echo "${mName}"
}

for e in "${pymodules[@]}"; do
  /bin/echo -n "${e} "
  brew search `brewModuleName $e`
done
exit $?

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