debug
Debugging functionality for Ruby
File Explorer
- action.yaml
- bug_report.md
- custom.md
- feature_request.md
- protocol.yml
- ruby-macos.yaml
- ruby.yml
- test_test.yml
- truffleruby.yml
- dependabot.yml
- pull_request_template.md
- console
- gentest
- setup
- rdbg
- debug.c
- extconf.rb
- iseq_collector.c
- traceInspector.rb
- abbrev_command.rb
- breakpoint.rb
- client.rb
- color.rb
- config.rb
- console.rb
- frame_info.rb
- irb_integration.rb
- local.rb
- open.rb
- open_nonstop.rb
- prelude.rb
- server.rb
- server_cdp.rb
- server_dap.rb
- session.rb
- source_repository.rb
- start.rb
- thread_client.rb
- tracer.rb
- version.rb
- debug.rb
- README.md.erb
- backtrace_test.rb
- break_test.rb
- catch_test.rb
- client_test.rb
- color_test.rb
- config_fork_test.rb
- config_postmortem_test.rb
- config_test.rb
- control_flow_commands_test.rb
- daemon_test.rb
- debugger_local_test.rb
- debugger_method_test.rb
- delete_test.rb
- display_test.rb
- edit_test.rb
- eval_test.rb
- frame_block_identifier_test.rb
- frame_control_test.rb
- help_test.rb
- info_test.rb
- irb_test.rb
- kill_test.rb
- list_test.rb
- load_test.rb
- nested_break_test.rb
- outline_test.rb
- print_test.rb
- quit_test.rb
- rdbg_option_test.rb
- record_test.rb
- rescue_test.rb
- session_test.rb
- thread_test.rb
- trace_test.rb
- trap_test.rb
- watch_test.rb
- whereami_test.rb
- binary_data_dap_test.rb
- boot_config_raw_dap_test.rb
- break_raw_cdp_test.rb
- break_raw_dap_test.rb
- break_test.rb
- call_stack_raw_cdp_test.rb
- call_stack_raw_dap_test.rb
- call_stack_with_skip_dap_test.rb
- catch_raw_cdp_test.rb
- catch_raw_dap_test.rb
- catch_test.rb
- delete_test.rb
- disconnect_cdp_test.rb
- disconnect_dap_test.rb
- eval_raw_dap_test.rb
- eval_test.rb
- finish_raw_dap_test.rb
- finish_test.rb
- hover_raw_cdp_test.rb
- hover_raw_dap_test.rb
- hover_test.rb
- next_raw_cdp_test.rb
- next_raw_dap_test.rb
- next_test.rb
- rdbgTraceInspctor_test.rb
- step_back_raw_dap_test.rb
- step_back_test.rb
- step_raw_cdp_test.rb
- step_raw_dap_test.rb
- step_test.rb
- terminate_test.rb
- threads_test.rb
- variables_test.rb
- watch_raw_cdp_test.rb
- watch_raw_dap_test.rb
- watch_test.rb
- assertions.rb
- assertions_test.rb
- cdp_utils.rb
- console_test_case.rb
- dap_utils.rb
- protocol_test_case.rb
- protocol_test_case_test.rb
- test_case.rb
- test_case_test.rb
- test_builder.rb
- .gitignore
- CONTRIBUTING.md
- debug.gemspec
- Gemfile
- LICENSE.txt
- Rakefile
- README.md
- TODO.md
# Use via CDN
jsDelivrjsDelivr serves any public GitHub repository as a CDN with zero setup. Pick a version and a file to get a ready-to-paste link and snippet.
Command Glossary
Commands referenced in this DOCs, explained below.
line
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line
Manage lines.
Accessed in configuration mode.
line vty 0 15
Configure lines from 0 to 15:
line
Read input:
bundle
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bundle
Dependency manager for the Ruby programming language.
bundle install
Install all gems defined in the `Gemfile` expected in the working directory:
bundle exec {{command}} {{arguments}}
Execute a command in the context of the current bundle:
bundle update
Update all gems by the rules defined in the `Gemfile` and regenerate `Gemfile.lock`:
edit
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edit
A terminal-based text editor from Microsoft.
edit {{path/to/file}}
Open a file:
tldr run-mailcap
View documentation for the original command:
<Ctrl f>{{pattern}}<Enter>
Search for a pattern:
eval
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eval
Execute arguments as a single command in the current shell and return its result.
eval "{{echo foo}}"
Call `echo` with the "foo" argument:
eval "{{foo=bar}}"
Set a variable in the current shell:
expr
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expr
Evaluate expressions and manipulate strings.
expr length "{{string}}"
Get the length of a specific string:
expr substr "{{string}}" {{from}} {{length}}
Get the substring of a string with a specific length:
expr match "{{string}}" '{{pattern}}'
Match a specific substring against an anchored pattern:
gem
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gem
A package manager for the Ruby programming language.
gem search {{regex}} {{[-a|--all]}}
Search for remote gem(s) and show all available versions:
gem install {{gem_name}}
Install the latest version of a gem:
gem install {{gem_name}} {{[-v|--version]}} {{1.0.0}}
Install a specific version of a gem:
host
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host
Lookup Domain Name Server.
See also: `dig`, `resolvectl`, `nslookup`.
host {{domain}}
Lookup A, AAAA, and MX records of a domain:
host -t {{field}} {{domain}}
Lookup a field (CNAME, TXT, ...) of a domain:
host {{ip_address}}
Reverse lookup an IP:
irb
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irb
Interactive Ruby shell.
irb
Start the interactive shell:
irb --simple-prompt
Start the interactive shell with the simple prompt:
irb -f
Start the interactive shell without reading the configuration file:
next
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next
React framework that uses server-side rendering for building optimized web applications.
next dev
Start the current application in development mode:
next dev {{[-p|--port]}} {{port}}
Start the current application and listen on a specific port:
next build
Build the current application optimized for production:
rails
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rails
A server-side MVC framework written in Ruby.
Some subcommands such as `generate` have their own usage documentation.
rails new "{{project_name}}"
Create a new rails project:
rails generate scaffold Post title:string body:text
Generate a scaffold for a model named Post, predefining the attributes title and body:
rails db:migrate
Run migrations:
rake
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rake
A Make-like program for Ruby.
Tasks for `rake` are specified in a Rakefile.
rake
Run the `default` Rakefile task:
rake {{task}}
Run a specific task:
rake --jobs {{n}}
Execute `n` jobs at a time in parallel (number of CPU cores + 4 by default):
rspec
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rspec
Behavior-driven development testing framework written in Ruby to test Ruby code.
rspec --init
Initialize an `.rspec` configuration and a spec helper file:
rspec
Run all tests:
rspec {{path/to/directory}}
Run a specific directory of tests:
ruby
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ruby
Ruby programming language interpreter.
See also: `gem`, `bundler`, `rake`, `irb`, `ri`.
ruby {{path/to/script.rb}}
Execute a Ruby script:
ruby -e "{{command}}"
Execute a single Ruby command in the command-line:
ruby -c {{path/to/script.rb}}
Check for syntax errors on a given Ruby script:
watch
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watch
Execute a program periodically and monitor the output in full-screen mode.
watch {{command}}
Repeatedly run a command and show the result:
watch {{[-n|--interval]}} 60 {{command}}
Re-run a command every 60 seconds:
watch {{[-d|--differences]}} df
Monitor disk space, highlighting differences as they appear: