The filter sed can process text from standard input and write its results to standard output. The input can be redirected from a file, and the output also can be redirected to a file using your ...

Over the years, the primary way that I’ve used sed is to change text on the fly. There are many occassions in which I want to change one string to another the first or every time that it appears in a ...

When last I discussed shell scripts, I was presenting a shell script that offered an alternative to the -C context flag in GNU grep. Although most modern Linux systems have the more capable grep ...