Top 25 Lesser-Known Linux Commands Instructor Guide

Top 25 Lesser-Known Linux Commands Instructor Guide

https://www.amazon.com/dp/B0FNLRVBB2/

The following instructor guide reviews lesser known but useful Linux commands. These commands can be utilized for personal, educational, or corporate usage. It is envisioned that the instructor utilizes the material from this guide via a demonstration type format with each command reviewing the format, example, common options and brief pros and cons.

Contents:

Introduction

How to Use and Run Commands

Create Example Txt File

Create Example C File

bind

chage

cowsay

Ctrl+x+e

disown

factor

getconf

getopt

mpstat

mtr

ncdu

nl

nproc

pstree

pv

rev

shuf

ss

stat

strace

tr

tldr

watch

xxd

Conclusion

About the Author

Notes

Linux Commands for Ethical Hacking Instructor Guide

Linux Commands for Ethical Hacking Instructor Guide

https://www.amazon.com/dp/B0FBFVNWGC/

The following instructor guide reviews core and key Linux commands for ethical hacking. These commands can be utilized for personal, educational, or corporate usage. It is envisioned that the instructor utilizes the material from this guide via a demonstration type format with each command reviewing the format, brief pros and cons and example. Command contents are grouped by high-level subject matter.

Contents:

Introduction

How to Use and Run Commands

Create Example File

Exploitation

Forensics and Analysis

Network Scanning and Enumeration

Vulnerability Assessment Process

Conclusion

About the Author

Notes

Linux - dd

The following is a Linux Dictionary word of the day:

dd – command for data duplicator which converts and copies a file, writes disk headers and boot based records.

                Note: running this command with the incorrect parameters and data can delete data.

                if parameter for read from file.

                of parameter to write from file.

                Example copy data from sbin/mdev to sbin/mdev2:

                dd if=/sbin/mdev of=/sbin/mdev2

Linux - Dc

The following is a Linux Dictionary word of the day:

dc – command that runs a desk calculator.

+ = option for addition.

- = option for subtraction.

* = option for multiplication.

/ = option for division.

% = option to display reminder of division operation.

c = option to clear the stack.

f = option to display entire contents of the stack.

p = option which prints to the screen the first item in the stack.

Example:

dc

10

f

10

10+p

        

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Linux Sed Instructor Guide

Linux Sed Instructor Guide https://www.amazon.com/dp/B0DRLCPYRK/

In a Linux system, utilizing sed to search as well as to find and replace is an essential part of working in the environment. Therefore, this instructor guide covers the most common ways to use sed. The commands can be utilized for personal, educational, or corporate usage. It is envisioned that the instructor utilizes the material from this guide via a demonstration type format.

Contents:

How to Use and Run Commands:

Create Example File:

Overview of Sed:

Sed Core Examples:

Sed Print Line Examples:

Sed Adding Aspects Examples:

Sed Manipulation of Lines Examples:

Sed Find and Replace Line Examples:

Sed Insert Line Examples:

Sed Updating File Examples:

Sed Line Number Examples:

Sed Line Deletion Examples:

About the Author:

Notes:

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Linux - Date

The following is a Linux Dictionary word of the day:

date – displays or changes the date & time.

-s = parameter for set.

Example: date

Example: Displays the date in the format of mm/dd/yy then the time in the format of hours:minutes:seconds:

date "+DATE: %m/%d/%y%nTIME: %H:%M:%S"

" – starts display line.

+DATE: option to concatenate the word DATE: on the output line.

%m option to display month.

%d option to display date.

%y option to display year.

%n option for a new line.

displays the date in the format as mm/dd/yy.

TIME: option to concatenate word TIME: on the output line.

%H: option for hour.

%M option for minutes.

%S option for seconds

" end of display line.

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Linux - Cut

The following is a Linux Dictionary word of the day:

cut – used for removing/parsing text in specific files or strings.

-d parameter which stands for delimiter.

-f parameter for file which then needs a number of how many lines to cut.

Example: using a , as a delimiter to cut the number of fields specified.

cut -d “,” -f 2 hello.c

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Linux - Curl

The following is a Linux Dictionary word of the day:

curl – display, upload or download data from one server to another using supported protocols (FTP, HTTP, IMAP, POP3, SCP, SFTP, TFTP, etc.).

Example displays contents of URL:

curl http://www.kmo.name

Example using curl with ftp to download all files in free directory that have oneill in the name and are a .pdf:

curl ftp://ftp.kmo.name/free/[oneill].pdf

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Linux - Ctags

The following is a Linux Dictionary word of the day:

ctags – command creates tags in files which then can be utilized for referencing.

-a parameter for appending.

-F parameter for searching for a pattern.

-R parameter to resurse through all files.              

Example: ctags -R *

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Linux - Csplit

The following is a Linux Dictionary word of the day:

csplit – command utilized to split a file into several parts based on context lines provided.

Example: csplit hello.txt 5

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Linux - Crontab

The following is a Linux Dictionary word of the day:

crontab – table used with the cron command to edit, read and remove the files read by the cron daemon. Each '*' asterisk stands for a portion of either the time or date with the corresponding column in each row.

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Linux - Cron

The following is a Linux Dictionary word of the day:

cron – service to execute scheduled commands or scripts every minute, hour, day of the month, month of the year, day of the week. Each '*' asterisk stands for a portion of either the time or date with the corresponding column in each row. Cron needs to be utilized with a crontab file.

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Linux - Cpio

The following is a Linux Dictionary word of the day:

cpio – copies files to and from an archive.

-o parameter which creates the archive.

-v parameter prints the names of the files as they are added to the archive.

Example: ls | cpio -ov > archive_of_files.cpio

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Linux - Continue

The following is a Linux Dictionary word of the day:

continue – resume the next iteration of a loop in the current iteration of a for, while, or until loop.

Example:

if(( $a==5 ))

 then

 continue

fi

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Linux - Containers

The following is a Linux Dictionary word of the day:

containers – aspect which allows for the packaging of applications with their entire runtime environment which includes all of the files necessary to make it run. Containers are constant as they move from development, to testing and production-based environments.

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Linux - Compress

The following is a Linux Dictionary word of the day:

compress – command utilized to compress files.

-f parameter to force operation.

Example: compress hello.txt

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Linux - Command Line

The following is a Linux Dictionary word of the day:

command line – aspect provided directly on the screen where one types specific commands.

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Linux - Comm

The following is a Linux Dictionary word of the day:

comm – compares two sorted files line by line showing unique lines and then the common lines.

Example: comm hello.txt hello2.txt

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Linux - Cmp

The following is a Linux Dictionary word of the day:

cmp – compares two files and only reports if the files are different.

Example: cmp hello.txt hello2.txt

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Linux - Clear

The following is a Linux Dictionary word of the day:

clear – clears all the text on the display screen.

Example: clear

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