问题
How do I update all my CPAN modules to their latest versions?
回答1:
An alternative method to using upgrade from the default CPAN shell is to use cpanminus and cpan-outdated.
These are so easy and nimble to use that I hardly ever go back to CPAN shell. To upgrade all of your modules in one go, the command is:
cpan-outdated -p | cpanm
I recommend you install cpanminus like the docs describe:
curl -L https://cpanmin.us | perl - App::cpanminus
And then install cpan-outdated along with all other CPAN modules using cpanm:
cpanm App::cpanoutdated
BTW: If you are using perlbrew then you will need to repeat this for every Perl you have installed under it.
You can find out more about cpanminus and cpan-outdated at the Github repos here:
- https://github.com/miyagawa/cpanminus
- https://github.com/tokuhirom/cpan-outdated
回答2:
An easy way to upgrade all Perl packages (CPAN modules) is the following way:
cpan upgrade /(.*)/
cpan will recognize the regular expression like this and will update/upgrade all packages installed.
回答3:
For Strawberry Perl, try:
cpan -u
回答4:
upgrade
BTW there is a help command.
回答5:
Try perl -MCPAN -e "upgrade /(.\*)/". It works fine for me.
来源：https://stackoverflow.com/questions/3727795/how-do-i-update-all-my-cpan-modules-to-their-latest-versions