Manipulating text with sed

The sed utility can be used to print the contents of a file, substitute a line (or multiple lines), and then save the file. In contrast to grep, sed can substitute a line or multiple lines in a file and perform an in-place update of that file.

The simplest sed invocation when substituting foo for bar is:

$ sed 's/foo/bar/' inputfile
Continue reading “Manipulating text with sed”