Hello ..I have a bunch of txt files placed in a directory .The directory may have sub directories too.
I am trying to write a perl script that reads the txt files one by one and replaces the
string "BIO_HOME" to "BIOLOGY_HOME".
I have done a bit of perl programming before ..but I seem to have gone out of my depth here...especially
since I believe I have to use a bit of recursion here ( due to sub directories)...also I dont really understand
how to do the string substitution in the files .I have done string substitution opening individual files reading them and
then substituting them ..but I ma confused here
Could you please help me in here