# writeLog {#writelog}

**Parent topic:**[Functions](../../Functions/category.md)

## Syntax {#syntax}

`writeLog(X1, [X2, X3….Xn])`

## Arguments {#arguments}

**X1**, **X2**, **X3** ... **Xn** are the strings to be written into the log file. Each string is a line in the log file.

## Details {#details}

Write a message into the log file. It must be executed by a logged-in user.

## Examples {#examples}

```
writeLog("This is a message written into the log file.")
writeLog("line1.","line2.","line3");

// Check the log file.
/* output:
Sun Aug 06 16:41:05 2017 <INFO> :This is a message written into the log file.
Sun Aug 06 16:50:35 2017 <INFO> :line1.
Sun Aug 06 16:50:35 2017 <INFO> :line2.
Sun Aug 06 16:50:35 2017 <INFO> :line3
*/
```

