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pmver () {
  perl -le "eval { require ${1} }; if( \$@ =~ /locate (\S+)\.pm/ ) { p
+rint qq{${1} not installed}; exit 1; } print qq{${1}: },\$${1}::VERSI
+ON||q{undefined}"
}

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```
$ pmver CGI
CGI: 3.05     
$
```