Pipe (Linux)

First introduced to me in CS138 through Derek Rayside.

Pipes allow us to use the output of one program (via stdout) as the input to another (via stdin).

Pipes are used for stream redirection

Done with the | symbol.

For example,

ls | grep file.txt

• use grep -i file.txt to ignore casing

Types of Pipe

• Anonymous Pipe
• Named Pipe

I saw these different types of pipes through this article https://www.baeldung.com/linux/ipc-performance-comparison to understand IPC.

Resources

• https://www.geeksforgeeks.org/piping-in-unix-or-linux/

I also saw the SE350 teacher use pgrep.

• https://superuser.com/questions/508881/what-is-the-difference-between-grep-pgrep-egrep-fgrep

Related

• POSIX Pipe