Unix via etymology

1 · John Cook · Sept. 16, 2021, 4:06 p.m.
There are similarities across Unix tools that I’ve seldom seen explicitly pointed out. For example, the dollar sign $ refers to the end of things in multiple contexts. In regular expressions, it marks the end of a string. In sed, it refers to last line of a file. In vi it is the command to […] The post Unix via etymology first appeared on John D. Cook....