Bash Scripting Comments Usage

Introduction

In Bash scripting, comments are used to add notes or explanations to the code. These comments are ignored by the interpreter and are only meant for human readers.

Skills Graph

%%%%{init: {'theme':'neutral'}}%%%% flowchart RL linux(("`Linux`")) -.-> linux/BasicSystemCommandsGroup(["`Basic System Commands`"]) shell(("`Shell`")) -.-> shell/BasicSyntaxandStructureGroup(["`Basic Syntax and Structure`"]) shell(("`Shell`")) -.-> shell/VariableHandlingGroup(["`Variable Handling`"]) shell(("`Shell`")) -.-> shell/AdvancedScriptingConceptsGroup(["`Advanced Scripting Concepts`"]) linux/BasicSystemCommandsGroup -.-> linux/echo("`Text Display`") shell/BasicSyntaxandStructureGroup -.-> shell/shebang("`Shebang`") shell/BasicSyntaxandStructureGroup -.-> shell/comments("`Comments`") shell/VariableHandlingGroup -.-> shell/variables_decl("`Variable Declaration`") shell/VariableHandlingGroup -.-> shell/variables_usage("`Variable Usage`") shell/AdvancedScriptingConceptsGroup -.-> shell/arith_ops("`Arithmetic Operations`") shell/AdvancedScriptingConceptsGroup -.-> shell/arith_expansion("`Arithmetic Expansion`") shell/AdvancedScriptingConceptsGroup -.-> shell/subshells("`Subshells and Command Groups`") subgraph Lab Skills linux/echo -.-> lab-387353{{"`Bash Scripting Comments Usage`"}} shell/shebang -.-> lab-387353{{"`Bash Scripting Comments Usage`"}} shell/comments -.-> lab-387353{{"`Bash Scripting Comments Usage`"}} shell/variables_decl -.-> lab-387353{{"`Bash Scripting Comments Usage`"}} shell/variables_usage -.-> lab-387353{{"`Bash Scripting Comments Usage`"}} shell/arith_ops -.-> lab-387353{{"`Bash Scripting Comments Usage`"}} shell/arith_expansion -.-> lab-387353{{"`Bash Scripting Comments Usage`"}} shell/subshells -.-> lab-387353{{"`Bash Scripting Comments Usage`"}} end

Bash Scripting Comments Usage

The problem is to understand how to use comments in Bash scripting.

Requirements

To add comments in Bash scripting, use the # symbol at the beginning of the line. The comment can be a single line or multiple lines. It is recommended to use comments to explain the purpose of the code, add notes, or provide instructions. The Bash script should be named ~/project/comment_example.sh.

Example

To run the script, use the following command:

bash comment_example.sh

Output:

60

Summary

In Bash scripting, comments are used to add notes or explanations to the code. They are ignored by the interpreter and are only meant for human readers. To add comments, use the # symbol at the beginning of the line. It is recommended to use comments to explain the purpose of the code, add notes, or provide instructions.

Bash Scripting Comments Usage

Introduction

Skills Graph