Yasser Khalil

Hello everyone I have text file and I would like to search for lines that has specific partial strings and shows only the lines that has those strings Example: Please help me in this issue Thanks a lot for great help I receive help in this forum in great way. Please have a look You are great people Help me please in this line help is only exists these are some lines as an example these lines have to be searched by any string no case sensitive is required in search process I need to search for "pleas"...