[Home](./index.md) > [bitburner](./bitburner.md) > [NS](./bitburner.ns.md) > [atExit](./bitburner.ns.atexit.md) ## NS.mv() method Move a file on the target server. Signature: ```typescript mv(host: string, source: string, destination: string): void; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | host | string | Host of target server. | | source | string | Filename of the source file. | | destination | string | Filename of the destination file. | Returns: void ## Remarks RAM cost: 0 GB NS2 exclusive Move the source file to the specified destination on the target server. This command only works for scripts and text files (.txt). It cannot, however, be used to convert from script to text file, or vice versa. This function can also be used to rename files.