# Lab3 Solution Amirlan Sharipov (BS21-CS-01)

## Table of Contents

- 1. Question 1
- 2. Question 2
- 3. Question 3
- 4. Question 4
- 5. Question 5
- 6. Question 6
- 7. Question 7
- 8. Question 8
- 9. Question 9

## 1. Question 1

Pipe takes stdout of one command and forwards it to another as stdin

## 2. Question 2

File formats and conventions

## 3. Question 3

    which ls

    /usr/bin/ls

## 4. Question 4

mv test_file.tot test_file.txt rename ’s/tot/txt/’ test-file.tot

## 5. Question 5

    echo -e "The location of hundreds of crab pots\nLittle Red Riding Hood\nThe location of hundreds of crab pots\nThe location of hundreds of crab pots\nThe sound of thunder\nEight hours in a row\nAll aboard\nEight hours in a row" | sort | uniq > newfile.txt; whoami >> newfile.txt

## 6. Question 6

ping 127.0.0.1 &> /dev/null

## 7. Question 7

    sort | nl -ba > output.txt

## 8. Question 8

cd home/rinri/testdir cd ..../home/rinri/testdir cd ~/testdir cd; cd testdir

## 9. Question 9

    awk -F ':' '{print $7;}' /etc/passwd | sort | uniq

    /bin/bash
    /bin/false
    /bin/zsh
    /sbin/nologin
    /usr/bin/git-shell
    /usr/bin/nologin

Author: Amirlan Sharipov (BS21-CS-01)

Created: 2023-02-17 Fri 00:07