in reply to Read file from bottom up

See: How do I read a file line by line in reverse order (from EOF to start of file)

s//----->\t/;$~="JAPH";s//\r<$~~/;{s|~$~-|-~$~|||s |-$~~|$~~-|||s,<$~~,<~$~,,s,~$~>,$~~>,, $|=1,select$,,$,,$,,1e-1;print;redo}

In Section Seekers of Perl Wisdom