log
Command Function
This command is used to set and query log configuration.
Syntax
log level [levelNum]
Parameters
Table 1 Parameter description
Usage
-
This command depends on LOSCFG_SHELL_LK. Before using this command, select Enable Shell lk on menuconfig.
Debug ---> Enable a Debug Version ---> Enable Shell ---> Enable Shell lK
-
The log level command is used to set the log level, which can be any of the following:
TRACE_EMG = 0,
TRACE_COMMON = 1,
TRACE_ERROR = 2,
TRACE_WARN = 3,
TRACE_INFO = 4,
TRACE_DEBUG = 5
If the log level specified is not within the value range, a message will be displayed.
-
If [levelNum] is not specified, this command queries the current log level. The usage method is also displayed.
-
If the log level is set to 4 or 5 in the source code of the open-source small system, a large number of logs will be printed.
Example
Run log level 3.
Output
Setting the log print level to WARN:
OHOS # log level 3
Set current log level WARN