If we talk about leading whitespaces, they are relatively easy to spot as they are at the start of the text. With the sed command and find command you can replace all instances of a word or multiple words in multiple files Examples To replace "oldWord" with "newWord" in all the files *.c: find . In the process, we explored a few sophisticated multi-line compatible sed commands such as N, H, G, D, and P for solving a few specific multi-line, text-editing use cases. So, I advise you to go with it. When [range] and [count] are omitted, replace in the current line only. If you want to display only the changed lines, use the below sed command. To perform a case-insensitive search, enter: If you are using older sed version try, It is easy to match firs… 6. g: This option will replace all occurrences in the line. See details about it. The “/” are delimiters. Subscribe to our mailing list and get interesting stuff and updates to your email inbox. Replacing all occurrences of one string with another in all files in the current directory:. The syntax is like so: The following script would replace the gif files extension in foo-bar.gif with .mp4: sed is a stream editor, and there’s a million things to sed, but this post concentrates into replacing simple string in files. … I wrote a blog post on how to update to Bash 4. The below sed command replaces the “Unix” pattern with “Linux” with lines 1 through 3. Also, sed allows you to use a regex if needed. The below sed command replaces all instances of the “unix” format with “Linux” on the line because “g” means a global replacement. Save my name, email, and website in this browser for the next time I comment. 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