Question

for all files containing a line like:

 <class name="blahblahblah" foo="bar" fooz="baz">

I would like to add this line right afterwards.

 <cache usage="read-write">

The key text for searching is

  <class name=

I have access to a bash shell for this.

Thanks!

Answer 1

Try this one:

sed -i '/<class name=*/ a\
<cache usage="read-write">' filename.xml

and remember it is just one single command. The -i option (–in-place) changes the given file (in place).