user48147

@SumeetDeshmukh here you go: blog.martin-graesslin.com/blog/2017/02/editing-files-as-root

gksudo kate won't work much longer—Kate has disabled running as root. sudoedit works pretty well but can have problems with Kate when you have multiple files open (I think because Kate releases the lock on the file when you switch tabs.)

Doesn't software updater run in a screen instance? You might be able to use screen -R or something.