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* Added new positive integer ns validation helper * `run`, `exec`, and `spawn` verify threads as a positive integer. * `run` terminal command also fails if the provided threadcount is not a positive integer. * Removed some references to .script files in various documentation, and removed some of the NS1 example blocks
1.5 KiB
1.5 KiB
Home > bitburner > NS > fileExists
NS.fileExists() method
Check if a file exists.
Signature:
fileExists(filename: string, host?: string): boolean;
Parameters
| Parameter | Type | Description |
|---|---|---|
| filename | string | Filename of file to check. |
| host | string | (Optional) Host of target server. This is optional. If it is not specified then the function will use the current server as the target server. |
Returns:
boolean
True if specified file exists, and false otherwise.
Remarks
RAM cost: 0.1 GB
Returns a boolean indicating whether the specified file exists on the target server. The filename for scripts is case-sensitive, but for other types of files it is not. For example, fileExists(“brutessh.exe”) will work fine, even though the actual program is named 'BruteSSH.exe'.
If the hostname/ip argument is omitted, then the function will search through the current server (the server running the script that calls this function) for the file.
*
Example
// The function call will return true if the script named foo.js exists on the foodnstuff server, and false otherwise.
ns.fileExists("foo.js", "foodnstuff");
// The function call will return true if the current server contains the FTPCrack.exe program, and false otherwise.
ns.fileExists("ftpcrack.exe");