TEXT FILE MANIPULATION

Capability	Unix and Cygwin	Windows
Shows the contents of a file cat	file	type file
Shows the contents of a file in reverse order (last line first, first line last)	tac file
Shows the contents of a file in reverse order, line by line (line reads right to left instead of left to right)	rev file
Searches for content in a file	grep this file	findstr this file
Searches for content in a file that does not match a pattern	grep v this file
Extracts the contents of a file based on delimiter char (such as a TAB-separated file or CSV file) and shows fields n, or n:n	cut d˜ char fn file example: cut -d˜: -f1,2 /etc/passwd
Replaces some content in a file with other content	sed i s/ this / that / file
Shows the first n lines of a file	head n file
Shows the last n lines of a file	tail n file
Shows the last lines of a file, even as new lines are appended	tail f file