Linux Shell Script Essentials for DevOps | AWK | Regular Expressions | Boot Process | cksum Tutorial

Linux Shell Script Essentials for DevOps | AWK | Regular Expressions | Boot Process | cksum Tutorial

#linuxtutorials #linuxandshelltutorials

Why case statement is used
Why sed is used
how do we define a function
how do we call a function
how do we delete a file using sed
AWK Command - extract the rows or column from output
Regular Experessions
---------------------
* - match 0 or more occurances
^ -carrot / begining of line
$ - ending
? - single charecter

Boot Process
---------------
post
bios
mbr - master boot record
boot loader
kernal
/etc/inittab

who -r -- run level

fsck -- file system check

cd /a
zip/gzip -- reduce the size of file

scp -- another machine

cksum -- to check the checksum

cksum filename -- first name

cksum filename --
---------------
/etc/

df -h -- /xyz

installation of a package
unix
linux

var = 'uname -na | cut -f1 -d" " '

if [ $ var == Linux]
then
----
else
------
fi

awk command bash,awk command examples,awk command geeksforgeeks,awk command in linux,awk command in linux tutorial,awk command in shell script,awk command in unix,awk command in unix with examples,awk command line,awk command linux,awk command linux tutorial,awk command mac,awk command shell,awk command to extract a column,awk command to read csv file,awk command to split a file,awk command tutorial,awk command tutorial in linux,awk command unix,awk command with examples,awk in shell scripting,awk shell scripting tutorial,boot process in linux,boot process in linux in detail,boot process in linux step by step,cksum command,cksum command in linux,cksum command tutorial,egrep regular expression cheat sheet,grep and awk command in linux,grep sed awk command unix,linux awk command example,linux regular expression ,linux regular expression cheat sheet,linux regular expression tutorial,linux sed regular expression,regular expression in shell script if condition,regular expressions in shell script,shell awk tutorial,unix awk command tutorial,use of awk command in linux,what is awk command in unix

[rajeshwarisathyanarayana]

Thank u so much... the revision u do after the session is nice...

[ektajarwal]

Thank u for the session ... I am facing a problem . I am not able to install virtual box in my lappy . It is showing an error some packages are not installable . Can you pls help me out

[yrndmrhn]

I have tiny question
For example question gave us 3 coloums
Country Population Continent
How can I calculate how many people live in each continent?
Can you help me :( It’s very important for me pleaseee 🥺