Hi everyone. I got a text file with more than 10 000 entries. Down below there is a preview of its contents: there are only 4 possibilities what can be in the  brackts. What I want to do is to copy the word before the  brackets to a specific file depending to the contents of the . So if there is [ý] or [y] after the word (or group of words in the specific line) copy it to document "y.txt". If there is [í] or after the word (or group of words in the specific line) copy it to document "i.txt". The result should look like: document i.txt document y.txt is there any program to do this??? or a terminal command??? PLEASE HELP ME!!! IT IS EXTREMELY IMPORTANT! THANKS IN ADVANCE!