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authorMaria Kustova <maxa@catit.be>2014-03-18 09:59:19 +0400
committerKevin Wolf <kwolf@redhat.com>2014-03-19 09:39:41 +0100
commitd208cc353a2860dc9614ba651439713e4ecdf9d3 (patch)
treef448d9fcd748691887ae2022118420f365d96468 /qemu-io.c
parent6e6507c06beb28e0551f68b13aa843ed1303f0f0 (diff)
qemu-io: Extended "--cmd" description in usage text
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 <maria.k@catit.be> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'qemu-io.c')
-rw-r--r--qemu-io.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/qemu-io.c b/qemu-io.c
index 2d119c28a6..5d7b53f756 100644
--- a/qemu-io.c
+++ b/qemu-io.c
@@ -193,10 +193,11 @@ 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"
@@ -207,8 +208,10 @@ 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)