foocommand && foocommand2 && foocommand3

#!/bin/sh
ls -lh &&
    # This is a comment
    echo 'Wicked, it works!'

#!/bin/bash -e

foocommand || exit 1
foocommand2 || exit 2
foocommand3 || exit 3

if foocommand; then

  # some comments

  if foocommand2; then

    # more comments

    foocommand3
  fi
fi

foocommand &&
  # some comment
  foocommand2 &&
    # more comment
    foocommand3

{ { false && echo "inner true"; } && { echo "inner true" && true; } || { echo "inner false" && false; } || echo "outter false"; }

big_block_1() {
  # ...
}
big_block_2() {
  # ...
}
big_block_3() {
  # ...
}

big_block_1 && big_block_2 && big_block_3

function fail() {
  echo "Failure: ${@}"
  exit 1
}

foocommand || fail "couldn't foo"