gistfile1.txt

#!/bin/bash
app="$1"

if [ -z "$app" ]; then
  echo "$0: specify binary/app name as first and only argument"
  exit 1
fi

echo
echo "which: $(which "$app")"
echo "command -v: $(command -v "$app")"
echo "type: $(type "$app")"
readlink=$(readlink $(command -v "$app"))
[ -z "$readlink" ] && echo "readlink: not a symlink" || echo "readlink: it's a symlink to $readlink"
# other ideas:
# strings /path/to/binary | grep -i "some clue"
# lsattr /path/to/binary -- linux only

echo
echo check package managers...
echo "npm?: "
npm list -g --parseable --depth 0 | grep "$app"

echo "pnpm?: "
pnpm list -g --parseable --depth 0 | grep "$app"

echo "yarn?: "
yarn global list | grep "$app"

echo "cargo?: "
cargo install --list | grep "$app"

echo "pip?: "
pip list | grep "$app"

echo "homebrew?: "
brew list | grep "$app"

# apt?
# snap?