Do you miss Notepadd++ which is only
available for Microsoft Windows? Here is an alternative for you called
"Notepadqq" released under GPL (GNU General Public License) Version 3.
Notepadqq is a Notepad++-like editor for the Linux desktop. It helps
developers by providing all you can expect from a general purpose text
editor, such as syntax highlighting for more than 100 different
languages, code folding, color schemes, file monitoring, multiple
selection and much more. You can search text using the power of regular
expressions. You can organize documents side by side. You can use
real-time highlighting to find near identifiers in no time. It has
support for multiple programming languages, multiple encodings and
plugin support.