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...ly the files that finish in ".sens.". I execute the command below, files <- dir(pattern="*.sens") but it includes all of the files that have "sens", independent of they be in the end or in the middle of the name of the file. How could I solve this? I sought in the html_help but I didn't find similar to this. My files "script_sens.txt", "Sen_155_01_R1.sens", "Sen_155_01_R2.sens", "Sen_155_01_R3.sens", "Sen_155_02_R1.sens", "Sen_155_02_R2.sens", "Sen_155_02_R3.sens", "Sen_155_03_R1.sens&quo...