# Operation Guide

The binary file of the WEMIX3.0 client node (i.e., `gwemix`) can be controlled using the following command.

### Start

This is a command to run the built `gwemix`using script (i.e., `gwemix.sh`).

```
{data_directory}/bin/gwemix.sh start
```

When `gwemix` is executed with the above command, a log file with a size of 10MB is automatically saved in the `{data_folder}/log` directory. Up to 6 log files are saved, and this number can be changed in `gwemix.sh`.

### Stop

This is a command to stop running `gwemix`.

```
{data_directory}/bin/gwemix.sh stop
```

### Restart

This is a command to stop and start `gwemix`in operation.

```
{data_directory}/bin/gwemix.sh restart
```

### Remove data

This is a command to delete all `chaindata` of `gwemix` in operation. **Please note that all `chaindata` will be removed by this operation.**

```
{data_directory}/bin/gwemix.sh wipe
```

### Console access

This is a command to access `gwemix` JavaScript console.

```
{data_directory}/bin/gwemix.sh console
```

### Log

The status of the current `gwemix`can be identified using the log file.

```
tail -F {data_folder}/logs/log
```

The log level is divided from 1 to 5 and the default is 3.

```
0=silent, 1=error, 2=warn, 3=info, 4=debug, 5=detail (default: 3)
```

To change the log level, access the gwemix console and execute the command below to apply immediately.

```
debug.verbosity({log_level})
```