Task $1$: Input Redirection

$1.$ Use the cat command to display the contents of a text file named input.txt$.$

$2.$ Redirect the contents of input.txt to a new file named output.txt using input

redirection.

Task $2$: Output Redirection

$1.$ Create a simple shell script named list$\_$files.sh that lists the files in the

current directory using the ls command.

$2.$ Execute the list$\_$files.sh script and redirect its output to a file named

file$\_$list.txt using output redirection.

Task $3$: Arrow Redirection

$1.$ Use the echo command to print "Hello, World!" to the terminal.

$2.$ Redirect the output of echo to append "Welcome to Unix$/$Linux$!"$ to a file

named welcome.txt using arrow redirection.

Task $4$: Process Management with ps

$1.$ Use the ps command without any options to display information about

processes running in the current terminal session.

$2.$ Use the ps $-$ef command to display information about all processes running

on the system.

$3.$ Use the ps aux command to display detailed information about all processes

running on the system.

$4.$ Filter the output of ps aux to display information only about processes owned

by a specific user $($e$.$g$.,$ your username$).$

$5.$ Filter the output of ps aux to display information only about processes related

to a specific command $($e$.$g$.,$ sshd$).$

$6.$ Redirect the output of ps aux to a file named process$\_$info.txt for future

reference.