From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtpq1.tb.mail.iss.as9143.net ([212.54.42.164]:34863 "EHLO smtpq1.tb.mail.iss.as9143.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934045AbdACLIv (ORCPT ); Tue, 3 Jan 2017 06:08:51 -0500 Received: from [212.54.42.115] (helo=lsmtp1.tb.mail.iss.as9143.net) by smtpq1.tb.mail.iss.as9143.net with esmtp (Exim 4.86_2) (envelope-from ) id 1cOMgg-00052o-1F for linux-btrfs@vger.kernel.org; Tue, 03 Jan 2017 11:51:26 +0100 Received: from dhcp-077-251-197-105.chello.nl ([77.251.197.105] helo=webminal.org) by lsmtp1.tb.mail.iss.as9143.net with esmtp (Exim 4.86_2) (envelope-from ) id 1cOMga-00036Z-UL for linux-btrfs@vger.kernel.org; Tue, 03 Jan 2017 11:51:26 +0100 Received: from localhost.localdomain (fedori [127.0.0.1]) by webminal.org (8.14.4/8.14.4) with ESMTP id v03AopO8008946 for ; Tue, 3 Jan 2017 11:51:01 +0100 Received: (from laks@localhost) by localhost.localdomain (8.14.4/8.14.4/Submit) id v03AoenG008698 for linux-btrfs@vger.kernel.org; Tue, 3 Jan 2017 11:50:40 +0100 Date: Tue, 3 Jan 2017 11:50:40 +0100 From: "Lakshmipathi.G" To: linux-btrfs@vger.kernel.org Subject: [PATCH] btrfs-progs: btrfs-debugfs: Display usage hint with no arguments Message-ID: <20170103105040.GA7231@fedori> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-btrfs-owner@vger.kernel.org List-ID: --- btrfs-debugfs | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/btrfs-debugfs b/btrfs-debugfs index dfb8853..70419fa 100755 --- a/btrfs-debugfs +++ b/btrfs-debugfs @@ -392,7 +392,9 @@ parser.add_argument('-f', '--file', action='store_const', const=1, help='get fil args = parser.parse_args() -if args.block_group: +if not (args.block_group or args.file): + print "No arguments passed. Type 'btrfs-debugfs -h' for usage." +elif args.block_group: for i in args.path[0:]: print_block_groups(i) elif args.file: -- 2.7.4