Question

|' (vertical line) in bash

A) Logical AND operator
B) Logical OR operator
C) Pipe operator
D) Redirect operator

Answer 1

The vertical line '|' in bash is the pipe operator, used to pass output from one command as input to another. It is essential for chaining command-line instructions in Linux and UNIX operating systems.

Step-by-step explanation:

The vertical line '|' in bash is known as the pipe operator. It is used to pass the output of one command as input to another command, allowing for powerful command-line processing and data manipulation. For example, the command 'ls -l | grep "^d"' uses the pipe operator to list all items in a directory with long format using 'ls -l', and then pipes that output to 'grep "^d"', which filters the list to only show directories.