sed, which stands for 'stream editor,' offers many options for selecting content from a command or a file and changing it as requested. The sed command on Linux can be used in quite a few different ...

Linux administrators who want to modify files without overwriting the original have many options, but one of the most efficient tools is the stream editor -- or sed. The stream editor is a default ...

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 ...

Want to know the tricks of replacing a variable in a file using the SED command? This article will give you an overview of replacing a variable value in a file using SED. Before replacing a variable ...

Unix utility SED provides an effective and versatile way of deleting one or more lines from a designated file to match the needs of the user. This Unix command is used for command line processing.

The moment you chain 7 commands including awk or write a shell script with many subroutines is time to consider a "real" language like perl or python, or even c/c++/java. File operations are a bit ...

A key point to these tools (from a practical point ) is that they are very memory efficient and allow work on just a "line".