19.15 Insert Line After Another Line
20221231
The sed command can insert a string into a file
after a pattern is found using append (a). With -i the file is
changed in-place. The example here finds the pattern specified, a line
that only contains <HEAD>, and appends the following string.
sed -i '/^<HEAD>$/a This line added after the <HEAD>' myfile.htmlYour donation will support ongoing availability and give you access to the PDF version of this book. Desktop Survival Guides include Data Science, GNU/Linux, and MLHub. Books available on Amazon include Data Mining with Rattle and Essentials of Data Science. Popular open source software includes rattle, wajig, and mlhub. Hosted by Togaware, a pioneer of free and open source software since 1984. Copyright © 1995-2022 Graham.Williams@togaware.com Creative Commons Attribution-ShareAlike 4.0
