dd

ping -i 20 host | perl -nle 'print scalar(localtime), " ", $_'

regex for iso 8601 date between 1970 and 2999 that match only valid date, the only mistake possible in this regexp is the bisextile year how are not checked

regex for iso 8601 date between 1970 and 2999 that match only valid date, the only mistake possible in this regexp is the bisextile year how are not checked

Replaces second to last but one characters with asterisks in email all parts BUT TLD: test01@gmail.com -> t1@g.com AUTHOR SO link: http://stackoverflow.com/users/3832970/wiktor-stribi%C5%BCew

Parses CUSIP text output from sec.gov

email validator

Matches hashtags withing string

This regex can ALL!