Learn how to use sed to filter and transform text.
Introduction to using sed on the command line with regular expressions. Learn how to perform search and replace (substitution), printing, writing, reversing, and more!
Learn how to specify a line address to apply your sed command, and print out text.
Learn how to use sed to delete lines in-place from files and standard in, and save edited files.
Learn how to use substitution (search and replace) with the sed command.
Learn how to reference an earlier regular expression with backreferences or the entire matched phrase with ampersands.
Learn how to apply multiple sed commands with the -e option, the semicolon (;) or with sed scripts
Learn how you can write up to ten files in sed per instance.
Learn about the hold buffer, which is like the pattern buffer but for storing and retrieving lines for later use.