KTU FOSS LAB - Dr Binu V P

You can connect two commands together so that the output from one program becomes the input of the next program. Two or more commands connected in this way form a pipe. To make a pipe, put a vertical bar (|) on the command line between two commands. When a program takes its input from another program, it performs some operation on that input, and writes the result to the standard output. It is referred to as a filter. The following are some of the filter commands . Click the commands to see the man page and learn different options. wc - count number of lines words and characters cut - cut the files vertically character or field wise paste - vertically paste two files head - get lines from the beginning of a file tail -get lines from the end of a file sort - sort the files contents grep , egrep , fgrep - search file contents uniq - unique lines from a sorted file join - joining two files tr - translating characters awk -is a full-featured text processing language   ...