(Unluckily I’ve forgotten how I found this, but still the way how then 🙂 What a pity!)
At the begging of your Perl script, u add the line :
use yourTheLibFile_uWannaUse ;#this file must return 1 at the end!
From this point and below, u can use all the sub stored in the above file simply just by calling the sub itself!
I myself find this extremely helpful when in Perl no writeline function is available, we have to : print "something…","\n", i.e manually add the new-line charater by ourselves which is a very bothering thing to do!
Have fun with the lib!!!