I got a bunch of files that i have to process, the files look like this: 

2009-08-18T034353_DR1_4N-NAC_123456_1234_band1.ntf 
2009-08-18T034353_DR1_4N-NAC_123456_1234_browse.jpg 
2009-08-18T034353_DR1_4N-NAC_123456_1234_band2.ntf 
2009-08-18T034353_DR1_4N-NAC_123456_1234_license.txt 
2009-08-18T034353_DR1_4N-NAC_123456_1234_metadata.xml 
2009-08-18T034353_DR1_4N-NAC_123456_1234_readme.txt 
2009-08-18T034353_DR1_4N-NAC_123456_1234_udm.tif

I want to delete this part: "-NAC_123456_1234" where the first part can consist of alphanumeric characters and the number parts only of numeric characters. 

I tried to a rename command but i wont get it to work, thought of something like: 

```rename '/-[a-zA-Z]+_[0-9]+_[0-9]+//' *.*```

Someone can help me with what i am missing? 
My rename version is: 
rename from util-linux 2.23.2