Count the number of occurrence of pattern in a file using Perl. perl -e '$_ = <>; print scalar ( () = m/needle/g ), "\n"' #Perl #Perloneliner #Count #Occurrence
A New Online Computational Biology Curriculum http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1003662 #Computational #Biology #Curriculum