### Install cpanminus to Local Perl

Source: https://github.com/miyagawa/cpanminus/blob/devel/App-cpanminus/README.md

Installs cpanminus to the bin path of a local Perl installation, typically used with tools like perlbrew or plenv. Does not require sudo.

```bash
curl -L https://cpanmin.us | perl - App::cpanminus
```

--------------------------------

### Install cpanminus to System Perl

Source: https://github.com/miyagawa/cpanminus/blob/devel/App-cpanminus/README.md

Installs cpanminus to your system's bin directory. Requires sudo privileges unless INSTALL_BASE is configured with local::lib.

```bash
curl -L https://cpanmin.us | perl - --sudo App::cpanminus
```

--------------------------------

### Scan Dependencies for Vanilla Installation

Source: https://github.com/miyagawa/cpanminus/wiki/Scanning-Dependencies

Combine --scandeps with -L to view dependencies for a vanilla Perl installation, showing all non-core dependencies instead of only those you don't have.

```bash
cpanm -q --scandeps -L /tmp/perl5 Catalyst
```

--------------------------------

### Use TestDist::Recommend

Source: https://github.com/miyagawa/cpanminus/blob/devel/App-cpanminus/testdist/TestDist-Recommend/README.md

Demonstrates how to use the TestDist::Recommend module.

```perl
use TestDist::Recommend;
```

--------------------------------

### Basic Usage of CPAN::Dummy::Test::PP

Source: https://github.com/miyagawa/cpanminus/blob/devel/App-cpanminus/testdist/CPAN-Dummy-Test-PP/README.md

Demonstrates how to use the CPAN::Dummy::Test::PP module by importing it.

```perl
use CPAN::Dummy::Test::PP;
```

--------------------------------

### Download Standalone Executable

Source: https://github.com/miyagawa/cpanminus/blob/devel/App-cpanminus/README.md

Downloads the cpanm executable and makes it executable. Ensure to manually update this version as --self-upgrade may not function.

```bash
cd ~/bin
curl -L https://cpanmin.us/ -o cpanm
chmod +x cpanm
```

--------------------------------

### Use CPAN::Dummy::Test::NonInteractive

Source: https://github.com/miyagawa/cpanminus/blob/devel/App-cpanminus/testdist/CPAN-Dummy-Test-NonInteractive/README.md

Demonstrates how to use the CPAN::Dummy::Test::NonInteractive module in a Perl script.

```perl
use CPAN::Dummy::Test::NonInteractive;
```

--------------------------------

### Troubleshoot HTTPS Warnings with Curl

Source: https://github.com/miyagawa/cpanminus/blob/devel/App-cpanminus/README.md

Use the -k option with curl to bypass SSL certificate verification if encountering handshake errors or warnings. This is a workaround for outdated clients or systems needing certificate updates.

```bash
curl -k -L https://cpanmin.us | perl - --sudo App::cpanminus
```

--------------------------------

### Scan Dependencies with cpanm

Source: https://github.com/miyagawa/cpanminus/wiki/Scanning-Dependencies

Use the --scandeps option to scan and display the dependency graph of a module in the console. This option considers modules already present in your Perl library path.

```bash
cpanm --scandeps Foo
```

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