cat()

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~~Note~~注意

The native method listed here is for the legacy mongo shell.

Definition定义

cat(filename,useBinaryMode)

Returns the contents of the specified file. The method returns with output relative to the current shell session and does not impact the server.

~~Parameter~~参数 ~~Type~~类型 ~~Description~~描述

filename string The filepath to open. The filepath must be on the local file system.

~~Parameter~~参数	~~Type~~类型	~~Description~~描述
`filename`	string	The filepath to open. The filepath must be on the local file system.
`useBinaryMode`	boolean	Optional. Flag to determine whether to open file in binary mode or text mode. Applicable for Windows. Specify `true` to open the file in binary mode. On Windows, opening the file in binary mode leaves the character '\n' as is. Specify `false` to open the file in text mode. On Windows, opening the file in text mode converts the character '\n' to '\r\n'. The default value is `false`. New in version 4.0.5.在版本4.0.5中新增。

useBinaryMode

boolean

Optional. Flag to determine whether to open file in binary mode or text mode.

Applicable for Windows.

Specify true to open the file in binary mode.

On Windows, opening the file in binary mode leaves the character '\n' as is.
Specify false to open the file in text mode.

On Windows, opening the file in text mode converts the character '\n' to '\r\n'.

The default value is false.

New in version 4.0.5.在版本4.0.5中新增。