# check whether we are in releng and create dir
mkdir_ret=29
if test -d releng_generated_data
then
  if test -d releng_generated_data/change_shell_to_use
  then
    mkdir_ret=0
  else
    mkdir releng_generated_data/change_shell_to_use
    mkdir_ret=$?
  fi
fi

if test "$mkdir_ret" = 0
then
  for i in run_all_auto auto_* manual_*
  do
    temp=releng_generated_data/change_shell_to_use/temp_file
    c=$(wc -l "$i" | awk '{print $1}')
    line=$(head -n 1 "$i")

    if echo x"$line" | grep '^x#!' >/dev/null 2>&1
    then
      cp "$i" "$temp"
      echo '#!'"$SHELL" > "$temp"
      tail -n "$(expr $c - 1)" "$i" >> "$temp"
      mv "$temp" "$i"
      echo "Changed to #!$SHELL : $i"
    fi
  done
  rmdir releng_generated_data/change_shell_to_use
else
  echo "change_shell_to_use: Missing directory ./releng_generated_data" >&2
  echo "or cannot create directory ./releng_generated_data/change_shell_to_use" >&2
  echo "change_shell_to_use: Run aborted"
  test 1 = 0
fi