17.15 Insert Line After Another Line
20220402 The sed command can do this
easily. Here with -i the file is changed in-place. The
sed command a appends a string as a new line to
the line after the pattern specified, which in this case is a line
that only contains <HEAD>.
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
