bash-completion VS Modules

Look into the bash-completion project. I'm not sure about "brief descriptions", though: It's possible with bash's programmable completion functionality, but I don't think bash-completion even tries to do that.

What exactly do you mean. bash by itself only has very limited autocompletion. With tools like this and some manual work you can make it better.

Even though there is a library of completion scripts like scop/bash-completion, it only includes common commands. For some commands that are not commonly used, we have to write completion scripts by hand.

BTW, it's not needed to assign $cur for the word containing the current cursor position, or prev=${COMP_WORDS[COMP_CWORD-1]}; it's already in bash-completion lib, and can be reused with _comp_initialize (renamed from _init_completion):

bash-completion - is a collection of command line command completions for the Bash shell, collection of helper functions to assist in creating new completions, and set of facilities for loading completions automatically on demand, as well as installing them.

Tab completion doesn't come from the "cryptsetup" program itself, it comes from a third-party project (https://github.com/scop/bash-completion)

Neither the terminal emulator (konsole in your case) nor Linux are the relevant piece of software. What matters is the shell and whether there are completion scripts for those commands. On my system (Debian with bash) completion works for both sudo and flatpak. The completions for sudo are provided by https://github.com/scop/bash-completion, the ones for flatpak are part of the flatpak package.

Also take a look into https://github.com/scop/bash-completion which might be available as a package on your distro, named most likely bash-completion.

Name ProjectUri Description ---- ---------- ----------- DockerCompletion https://github.com/matt9ucci/DockerCompletion Docker command completion for PowerShell. sthArgumentCompleter https://github.com/sethvs/sthArgumentCompleter Module for managing argument completers registered by Register-ArgumentCompleter cmdlet PSKubectlCompletion https://github.com/mziyabo/PSKubectlCompletion Kubectl auto-completion for PowerShell BitTitan.Runbooks.MSPComplete PowerShell module for common MSPComplete functions and resources used in BitTitan Runbooks. Microsoft.PowerShell.UnixCompleters https://github.com/PowerShell/Modules/tree/master/Modules/Microsoft.PowerShell.UnixCompleters Get parameter completion for native Unix utilities. Requires zsh or bash. NPMTabCompletion https://github.com/dfinke/NPMTabCompletion Enables tab completion for npm commands npm-completion https://github.com/gluons/posh-npm-completion A npm tab completion for PowerShell. GuiCompletion https://github.com/nightroman/PS-GuiCompletion GUI-style tab-completion menu for PowerShell. PSBashCompletions https://github.com/tillig/ps-bash-completions PSBashCompletions offers the ability to process bash completions into PowerShell. AWSCompleter https://github.com/mziyabo/PSAWSCompletion awscli auto-completion for PowerShell BitTitan.Runbooks.MSPComplete.Beta PowerShell module for common MSPComplete functions and resources used in BitTitan Runbooks. DockerComposeCompletion https://github.com/matt9ucci/DockerComposeCompletion Docker Compose command completion for PowerShell. posh-HumpCompletion https://github.com/stuartleeks/posh-HumpCompletion When working with some PowerShell modules, there can be a large number of cmdlets, and t... scoop-completion https://github.com/Moeologist/scoop-completion A Scoop tab completion module for PowerShell. yarn-completion https://github.com/gluons/posh-yarn-completion A Yarn tab completion for PowerShell. CompletionPredictor Command-line intellisense based on PowerShell auto-completion DockerMachineCompletion https://github.com/matt9ucci/DockerMachineCompletion Docker Machine command completion for PowerShell. TSDTabCompletion Enables tab completion for tsd commands VSCETabCompletion Enables tab completion for vsce commands MavenAutoCompletion https://github.com/krymtkts/MavenAutoCompletion Maven Auto Completion provides a simple auto completion of Maven 3 to PowerShell. PSGitCompletions http://github.com/PowerCode/PSGitCompletions Tab completions for git.exe YarnTabCompletion Enables tab completion for Yarn commands CompleteHipChat https://github.com/DaveStephens/CompleteHipChat/ A module for interacting with the HipChat REST API. GcloudTabComplete Provide tab completion for the gcloud CLI interface PubCompletion https://github.com/vsotov/PubCompletion PubCompletion extends tab competion and IntelliSense feature of PowerShell >= v5 for Dar... WSLTabCompletion https://github.com/NotTheDr01ds/WSLTabCompletion Provides completion suggestions for wsl.exe (Windows Subsystem for Linux) SecretManagementArgumentCompleter https://github.com/itfranck/SecretManagementArgumentCompleter Argument completer for Microsoft.Powershell.SecretManagement kmt.winget.autocomplete https://github.com/KevinMarquette/winget.autocomplete enables the winget autocomplete functionality when imported VimTabCompletion https://github.com/jfishe/VimTabCompletion Powershell Tab Completion for Vim YarnComplete Provides basic tab completion for Yarn scripts ps-adcompleters Provide tab-completion to users and groups in ActiveDirectory macOSdefaultsCompleter https://github.com/TylerLeonhardt/macOSdefaultsCompleter An argument completer for the macOS `defaults` utility. opCompleter https://github.com/MJECloud/opCompleter An argument completer for the 1Password CLI. TerraformCompletion https://github.com/balticer/TerraformCompletion Provides Terraform command completion for PowerShell. Microsoft.PowerShell.UnixTabComp... https://github.com/PowerShell/UnixCompleters Get parameter completion for native Unix utilities. Requires zsh or bash. Register-Completion https://github.com/aliuq/Register-Completion Easy to register tab completions with data structures. Easy to customize. UsefulArgumentCompleters https://github.com/MartinGC94/UsefulArgumentCompleters Module with lots of argument completers for popular commands. PsComplete https://github.com/aciq/pscomplete/ Cross-platform custom powershell autocomplete / tab expansion nvm-completion https://github.com/kamack38/posh-nvm-completion A nvm tab completion for PowerShell. PwshComplete https://github.com/artiga033/Pwsh-Complete Adds tab completion for many commandline tools. chocolatey-tab-completion chocolatey tab-completion module