Creating a sed-based file substitution tool. A few weeks ago, I was digging through my spam folder and found an email message that started out like this: Dear #name# Congratulations on winning the $15 ...

The bash man page has long had the following bug listed: "It's too big and too slow" (at the very bottom of the man page). If you agree with that, then you probably won't want to read about the "new" ...

In Bash, a hash is a data structure that can contain many sub-variables, of the same or different kinds, but indexes them with user-defined text strings, or keys, instead of fixed numeric identifiers.