CPAN error message -

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i trying use cpan, when typed in following command. errors occurred. similar question asked in forum(install cpan module), tried solution, did not work me. wondering if can drop hint?

perl -mcpan -e shell

your configuration suggests cpan.pm should use working directory of
/home/bq/.cpan
unfortunately not create lock file
/home/bq/.cpan/.lock
due 'permission denied'.

please make sure configuration variable
$cpan::config->{cpan_home}
points directory can write .lock file. can set variable in either cpan/myconfig.pm or cpan/config.pm in @inc path;

try:

sudo perl -mcpan -e shell

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