#!/usr/bin/env bash

# Here is a comment
do_a_thing
produce | consume # here's a comment
something

# comment
a=123 # comment

# a different comment
# that spans multiple lines
if some_command; then
  # indented multi-
  # line comment
  do_something
  another_thing --foo --bar
else
  do_something_else
fi

if [[ -e "/some/file" ]] || true; then
  foo
elif ! ((1 == 0)); then
  bar
  baz
else
  baz && quux || xyzzy &
fi

multi | line |& pipeline

for thing in foo bar quux; do
  echo ${thing}
  rm -rf /
done

select thing in foo bar quux; do
  echo ${thing}
  break
done

for (( i=0; i < 10; i++ )); do
  echo ${i}
done

while true; do
  echo "Hello world!"
done

until true; do
  echo "Hello world!"
done

case "${foo}" in
  single) line --mode;;
  multi)
    line && mode
    ;;&
  bar|quux)
    xyzzy
    do_something | least_expected
    ;;
  *)
    exit 1
esac

{
  here
  is
  { a; nested; compound; }
}

if { foo; }; then
  echo
fi

(
  here
  is
  ( a; nested; subshell )
)

if ( foo; bar ); then
  echo
fi

{ one; ( inside; the ); other; }

(
  one
  {
    inside
    the
  }
  other
)

foo() {
  local x=1
  x=2
  bar
  quux || xyzzy
}

quux() { xyzzy; }

export a b=1 c
declare x=${foo}
x=123
echo "${x:-something}"
echo "${x/foo/bar}"
ENV_VAR=123 ANOTHER=456 some_command

cat <<-HEREDOC
	Here is
	a
	  heredoc
	HEREDOC

some_command >output <input
another_thing <<< herestring

if foo 2>/dev/null; then
  exit 1
fi

{
  cat <<EOF
This shouldn't be indented ${foo}
...nor this
EOF
}

readonly a="$(foo | bar || baz --quux 2>&1)"
foo <(bar || baz --something) | tee >(quux)

export xyzzy=$(
  something
  another_thing --foo
)