Quickzi: How To Replace a Line in a Text File

Here is a quick tip on how to use sed to replace a line in a text file from the command line, without opening it.

Replace a Line in a File

First, replace the text you want with sed and output it into a temporary file to ensure that it is correct:

# sed -e 's/original-text/new-text/' textFile > newFile

View the newFile and make sure that the line is correctly replaced:

# more newFile

Overwrite the textFile with the newFile:

# mv newFile textFile

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>