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help

Syntax

Description

Display help about available operational commands, configuration statements, or general information about getting help. Entering the help command without an option provides introductory information about how to use the help and ? commands.

Options

apropos string—(Optional) Display command names and help text that matches the string specified. If the string contains spaces, enclose it in quotation marks ("  " ). You can also specify a regular expression for the string, using standard UNIX-style regular expression syntax.

reference statement-name—(Optional) Display summary information for a configuration statement. Use the information below to navigate the reference command.

  • Reference information is organized in a similar method as the command hierarchy when configuring Junos. Specific sections of help reference may not have as many sub-options as other sections.

    For example, the information for an optical wavelength bypass is located in help reference chassis fpc wss-express-in rather than help reference chassis wss-express-in. This is because, in the configuration statement, this command is found under chassis fpc, not chassis.

  • Information titles may not perfectly reflect the command string.

  • Each information section has a short description of the command next to it. Options without a text description represent a "level" that you can add to the help reference command.

  • This information is based on summary descriptions that appear in the Junos CLI-reference guide.

syslog syslog-tag—(Optional) Display information about system log messages.

tip cli number—(Optional) Display a tip about using the CLI. Specify the number of the tip you want to view.

topic word—(Optional) Display usage guidelines for a topic or configuration statement. This information is based on subjects that appear in the Junos configuration guides. If a topic is not listed, please consult the full documentation guide for Junos OS and Junos OS Evolved at HPE Juniper Networks Documentation.

Required Privilege Level

None

Release Information

Command introduced before Junos OS Release 7.4.

The apropos option was added in Junos OS Release 8.0.

The information contained in topic has been removed for Junos OS Release 25.4R1 due to the extensive amount of information needed to cover topics, configurations, and features.

The information contained in reference is actively maintained. Not all features and commands are available on all platforms. Please consult Feature Explorer at https://apps.juniper.net/feature-explorer/ to verify features and options for your specific platform.

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