or download this
DB<4> v
+ Undefined subr
+outine &DB::cmd_l called at /usr/share/perl/5.34/perl5db.pl line 6034
+.
at /usr/share/perl/5.34/perl5db.pl line 6034.
+ DB::cm
+d_v("v", "", 56) called at /usr/share/perl/5.34/perl5db.pl line 4798
...
Debugged program terminated. Use q to quit or R to restart,
+ use o inhibit_
+exit to avoid stopping after program termination,
h q, h R or h o to get additional info.
DB<4>