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[Qemu-devel] [PATCH 3/3] qemu-io: Extended "--cmd" description in usage
From: |
Maria Kustova |
Subject: |
[Qemu-devel] [PATCH 3/3] qemu-io: Extended "--cmd" description in usage text |
Date: |
Mon, 17 Mar 2014 01:10:59 +0400 |
It's not clear from the usage description that "--cmd" option accepts its
argument as a string, so any special symbols have to be quoted from the shell.
Updates in usage text:
- Specified parameter format for "--cmd" option.
- Added an instruction how to get help for "--cmd" option.
Signed-off-by: Maria Kustova <address@hidden>
---
qemu-io.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/qemu-io.c b/qemu-io.c
index fc38608..be68d96 100644
--- a/qemu-io.c
+++ b/qemu-io.c
@@ -194,10 +194,11 @@ static const cmdinfo_t quit_cmd = {
static void usage(const char *name)
{
printf(
-"Usage: %s [-h] [-V] [-rsnm] [-c cmd] ... [file]\n"
+"Usage: %s [-h] [-V] [-rsnm] [-c STRING] ... [file]\n"
"QEMU Disk exerciser\n"
"\n"
-" -c, --cmd command to execute\n"
+" -c, --cmd STRING execute command with its arguments\n"
+" from the given string\n"
" -r, --read-only export read-only\n"
" -s, --snapshot use snapshot file\n"
" -n, --nocache disable host cache\n"
@@ -208,8 +209,10 @@ static void usage(const char *name)
" -T, --trace FILE enable trace events listed in the given file\n"
" -h, --help display this help and exit\n"
" -V, --version output version information and exit\n"
+"\n"
+"See '%s -c help' for information on available commands."
"\n",
- name);
+ name, name);
}
static char *get_prompt(void)
--
1.8.2.1