do.for file in * do
  echo "$file"
donefor file in *; do
  echo "$file"
done
# or
for file in *
do
  echo "$file"
doneShellCheck found a do on the same line as a loop, but
do only starts a loop block at the start of a
line/statement. Make the do the start of a new
line/statement by inserting a linefeed or semicolon in front of it.
If you wanted to treat do as a literal string, you can
quote it to make this clear to ShellCheck and humans:
for f in "for" "do" "done"
do
  echo "Shell keywords include: $f"
doneShellCheck is a static analysis tool for shell scripts. This page is part of its documentation.