perl -pe "s/[#*]//g" infile > outfile

##</code><code>##

perl -i.bak -pe "s/[#*]//g" filename

##</code><code>##

perl -pe "next if /[#*]/" infile > outfile

##</code><code>##

perl -i.bak -pe "next if /[#*]/" filename