Published December 19, 2020 by

head, tail, more & less Commands in Unix/Linux

 



head : to display specified number of lines from top of the file.

--------

head cities.txt


* Display 10 lines from top of the file.

* 10 is the dfault value for head command


head -n 15 cities.txt  (or)  head -15 cities.txt


head -n 5 cities.txt  



tail : to display specified number of lines from bottom of the file.

----------------

tail cities.txt


* Display  last 10 lines from the file.

* 10 is the dfault value for tail command


tail -n 15 cities.txt  (or)  tail -15 cities.txt


tail -n 5 cities.txt   



Display the lines from 10 to 15 ?

head -15 cities.txt | tail -6


Display the lines from 20 to 30 ?

head -30 cities.txt | tail -11


ls - l   Display List of files and directories


ls -l | head -5   Display Top 5 files and directories

ls -l | tail -5   Display Top 5 files and directories



more : Display content page by page.(Next page - space, Next line - Enter,  q- Command prompt)

--------------

more cities.txt


more : Display content page by page in both directions means next page or to previos page

Next page - space, Next line - Enter,  q- Command prompt)

--------------

more cities.txt

ls -l | more

ls -l | less

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Published December 19, 2020 by

touch, pwd & ls Commands in Unix/Linux

 



ls : List Files 


ls -l   : shows file or directory, size, modified date and time, file or folder name and owner of file and its permission.


ls -a   : view hidden files

touch .myfile.txt

ls -a

ls -l -a : detailed listing files along with hiddwn files

ls -F : will add the ‘/’ Character at the end each directory.

ls -r : display files and directories in reverse order.


ls -R : displays directories along with sub subdirectories


ls -lS : displays file size in order, will display big in size first.


ls -l Documents : list files under directory Documents


wild card characters

--------

? Single character

* Multiple characters

[ ] Range of values


ls ?.*

Output: a.doc  b.doc  c.doc  x.txt  y.txt


ls ?.doc

Output: a.doc  b.doc  c.doc

ls ?.txt

Output: x.txt  y.txt

ls a* Displays files which are starting with 'a'

Output: abc.doc  a.doc


Range(Displays files starting with a to z)

ls [a-z]*.*

ls [a-c]*.*

ls [a-z]*.txt


rm ?.* Removes the files with single character

rm *.txt Removes the files with extension txt

rm *.doc Removes the files with extension txt

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Published December 19, 2020 by

Unix/Linux File and Directory Commands

 



cat

Creating the new file

Display content of the file

Concatenating more than one file

Appending data to the existing file

cp - Copy contents from a file to another file(source to destination)

mv

Renaming a file(changing name of the file)

Renaming a directory

Moves files from one directory to another directory

rm - Delete/remove a file or directory (only if directory is empty).



mkdir - create directories and subdirectories.

mkdir testdir

create multiple directories at one time:

 mkdir testdir1 testdir2 testdir3

create several subdirectories at one time:

 mkdir -p world/countries/states

-------------------------------------------------------------------

cd - changing/closing directory

cd ..    : go back to one level

cd /testdir1/testdir2/testdir3 → changing directory

pwd  :  it prints present directory

cd ~     Move to users home directory from anywhere.

------------------------------------------------------------------

rmdir - Remove the directory if it is empty (works only if directory empty)


rmdir world      // error

rm -r world

rmdir testdir1 testdir2 testdir3



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Published December 06, 2020 by

Manual & Automation Testing Free Video Tutorials | YouTube Playlists





** How to Prepare for a QA Test Automation Interview

https://youtu.be/gJZpjl_SQ00

** Project based FAQ's & Resume Preparation

https://www.youtube.com/watch?v=Vn8Vn37G2Pc

Selenium FAQ’S (8 Parts)

https://www.youtube.com/watch?v=APRVsl01AZI&list=PLUDwpEzHYYLtFHGMSyucq8IP3vcsvpUTi

Selenium Locators

https://www.youtube.com/watch?v=HBOdscUwUnc&list=PLUDwpEzHYYLut2OnS4GlY7fiSAabRmsz3

Selenium Grid:

https://www.youtube.com/watch?v=ewUI1p-tZ64&t=385s

ApachePOI API Advanced( for Selenium)

https://www.youtube.com/watch?v=ipjl49Hgsg8&list=PLUDwpEzHYYLsN1kpIjOyYW6j_GLgOyA07

Selenium4 New Features

https://www.youtube.com/playlist?list=PLUDwpEzHYYLtW68M8fSawlFvsG0YX82Tx

Git & Github advanced

https://www.youtube.com/watch?v=HCeBd5GKNO8

Java Collections

https://www.youtube.com/watch?v=hKhlkx_6HeI&list=PLUDwpEzHYYLu9-xrx5ykNH8wmN1C1qClk

Java Lambda Expressions

https://www.youtube.com/watch?v=MMruoVq6160&list=PLUDwpEzHYYLtNoZUJaRJfCktwjVtOwIk3

Java Streams

https://www.youtube.com/watch?v=33JrZGtKOEE&list=PLUDwpEzHYYLvTPVqVIt7tlBohABLo4gyg

Java Coding FAQ’s

https://www.youtube.com/watch?v=3vbizK6KzaU&list=PLUDwpEzHYYLtgkXK6YaZ4I2XcsjMqIaEa

Docker

https://www.youtube.com/watch?v=AQbSmki24Xw&list=PLUDwpEzHYYLtpm24ojHwubwmMNQildHBc

Protractor

https://www.youtube.com/watch?v=LzrNtbKANCg&list=PLUDwpEzHYYLt9nBh8fMrJMt2PCHnWCqN1

Cucumber

https://www.youtube.com/watch?v=aFlAXLSHbCg&list=PLUDwpEzHYYLuOleK8iPl6kc2UbXGvllBY

Miscellaneous Topics in Selenium

Ajax/Stale Element Exception: https://www.youtube.com/watch?v=m558zwIM-bU

Robot Class API: https://www.youtube.com/watch?v=jz7MgzNsepI&t=757s

Handle Authentication Popup: https://www.youtube.com/watch?v=cj8z9_c6ejo&t=525s

Automate QR Code: https://www.youtube.com/watch?v=5Ihbu93zxIU&t=693s

Automate Bar Codes: https://www.youtube.com/watch?v=M2cypkjI93c&t=70s

Check Bitmaps/Images: https://www.youtube.com/watch?v=1CBS1AQy6zo&t=717s

Headless browser testing: https://www.youtube.com/watch?v=WqIAcYXaIZA&t=1s

Java script Executor in Selenium: https://www.youtube.com/watch?v=P6LBk_qzISg&t=2625s

DB testing in Selenium (JDBC): https://www.youtube.com/watch?v=Sw3eqsKvfCM

Checking Broken links in page: https://www.youtube.com/watch?v=E0gvFxM6qTw

Use Java HashMap in Selenium: 

https://www.youtube.com/watch?v=x7AIIVFgQVw

Working with Cookies (part1): https://www.youtube.com/watch?v=TjLU9Iq9AeE

Working with Cookies (part2): https://www.youtube.com/watch?v=cv5A4yO8QDo

AutoIT (Part1): https://www.youtube.com/watch?v=wI6hUWcu2Uk

AutoIT (Part2): https://www.youtube.com/watch?v=j22WqyW6PJo

API Testing using Postman

https://www.youtube.com/watch?v=95NBave0W_k&list=PLUDwpEzHYYLt3kLIHDLVjdnmJw7BDvVdE

API Testing using SOAPUI

https://www.youtube.com/watch?v=4Od5hMd-EPM&list=PLUDwpEzHYYLugXkSaNTuQ4J3HFXVWNUf-

API Testing using RestAssured

https://www.youtube.com/watch?v=n3UITFRJ9KU&list=PLUDwpEzHYYLskkglxoXd0L6DKu4uOfh-m

JMeter Performance Testing

https://www.youtube.com/watch?v=817zU_bXh9Y&list=PLUDwpEzHYYLs33uFHeIJo-6eU92IoiMZ7

Manual Testing Full Course

https://www.youtube.com/watch?v=QJqNYhiHysM&list=PLUDwpEzHYYLuMijnpSMKtv14sUuJLlgt_

Manual Testing Project

https://www.youtube.com/watch?v=7KvTEW243rg&list=PLUDwpEzHYYLu4ey2FpbMuZOPZ2kKb3o5v

SQL Videos:

https://www.youtube.com/playlist?list=PLUDwpEzHYYLt0aRs7gvyEEviMp_CoTO3q

Manual Testing + Jira Videos:

 https://www.youtube.com/watch?v=Wb-g7tPO2Gw&list=PLUDwpEzHYYLsMt3L4MnvmsL_DhxUNTW6J

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