tail

Function

The tail command displays information in the last lines of a specified file.

Format

tail file-name [ line ]

Parameters

Parameter	Description	Value
file-name	Displays information in a specified file.	The value is a string of 1 to 128 characters in the [ <drive> ][ path ][ <file-name> ] format. An absolute path name is a string of 1 to 255 characters. A relative path name is a string of 1 to 128 characters. Up to 8 levels of directories are supported.
line	Displays information in the last lines of a specified file.	The value is an integer ranging from 0 to 2147483647. By default, if this parameter is not selected, information in the last 10 lines is displayed.

Parameter

Description

Value

file-name

Displays information in a specified file.

The value is a string of 1 to 128 characters in the [ <drive> ][ path ][ <file-name> ] format. An absolute path name is a string of 1 to 255 characters. A relative path name is a string of 1 to 128 characters. Up to 8 levels of directories are supported.

line

Displays information in the last lines of a specified file.

The value is an integer ranging from 0 to 2147483647. By default, if this parameter is not selected, information in the last 10 lines is displayed.

Views

User view

Default Level

3: Management level

Task Name and Operations

Task Name	Operations
rpm	read

Usage Guidelines

To display information in the last lines of a specified file, run the tail command.

Example

# Display information in the last two lines of the rpm.log file.

<HUAWEI> tail rpm.log 2
[140808-07:52:26] [RPM][SIGN] RPM ReqAppDBRspHandle RequestType:2, RequestId:10001, RcvTransNo:655458744,SndTransNo:655458744,Session:655458744
[140808-07:52:27] [RPM][ERR] File:autoconfig.py does exist in the filelist in node /opt/svrp/router1/1-17/vrpv8/home/$_system for osnode:273 when add file [PID(25786): LinuxError(0)]