增加命令功能

cmd/saastool/help.go

@@ -12,21 +12,19 @@ func RunHelp(args ...string) error {
 }
 
 const usage = `
-Usage:  [[command] [arguments]]
-
-The commands are:
+Usage:  saastool COMMAND [OPTIONS]
 
+Commands:
     write              Write user's 'bytes / uint32s / flags'
     read               Read user's 'bytes / uint32s / flags'
-	columnwrite        Write columns for 'deviceid / openid' users
+    columnwrite        Write columns for 'deviceid / openid' users
 
-	tasklist           List tasks
-	taskcancel         Cancel task
-	taskdetail         Show task detail
+    convert            Convert data to write format
+    makehash           Make file hash for upload task
+
+    task               Task commands
 
 "help" is the default command.
 
-Use "saastool [command] -help" for more information about a command.
+Use "saastool COMMAND -help" for more information about a command.
 `
-
-//    strip            Stripping redundant data from redis