in a text line this:
[anything but tab][tab][anything but tab][tab][anything but tab]
[anything but tab][tab][anything but tab][tab][anything but tab]
[anything but tab][tab][anything but tab][tab][anything but tab]
[anything but tab][tab][anything but tab][tab][anything but tab]
etc
all the lines that start with the same:
[anything but tab][tab][anything but tab][tab]
I want to delete them and leave only the first occurence, and at the end of it, append all the last [anything but tab] of each of the deleted lines, seperated by –