A file whose filename ends with a date-and-time suffix that is separated by @ is a copy that is created to compare it later with the current version of the file and with other such copies of that file by using a comparison utility.
A file whose filename ends with a date-and-time suffix that is separated by @ is a copy that is created to compare it later with the current version of the file and with other its such copies by using a comparison utility.
aaa.txt aaa.txt@20110228-1359 aaa.txt@20110228-1405
Are both of these versions grammatical? The second version is more concise but looks weird.