CMD LISTS

Clear :- Clear the terminal screen

Cd :- To change the directory

Cd .. : - To come to the previous directory

mkdir :- To create a directory

mkdir -p :- to create sub folder inside the folder at same time

ls :- To get list of teh files and directory

cd :- To change the directory

History :- To get the history of the commands we used

Pwd :- Print Working directory

touch :- to create a empty file

cat :- To display content

cat > <filename> :- To modify the content

cat >> <filename> :- To add the content

rm <filename> :- To remove the file

rmdir <dirname> :- To remove the directory

{Use -c for the no line you want to see }

head <filename> :- To see the top lines of the file

tail <filename> :- To see the bottom lines of the file

sudo nano <filename> :- To create file and nano editor

vi <filename> :- To create file and open vi editor

i - to get in insert mode where u can write

esc - to come out of insert mode

:wq - To save and exit

mv source destination :- To move the file and rename it

cp source

deleting:

rm ---> for deletion of files

rmdir---->deletion of directories

rm -rf -----> deletion of non-empty directories

sudo su---> super user

grep--> to find particular pattern

grep -i ----> case insensitiveness

grep -w------>exact word

grep -w -i -> to find all words without case insensitive

ps ----> To display all the current running processes (front end data like a task manager)

ps -alx ----> To list out all the processes with backend data

ps -e ----> To list out all processes with only required data

pipelines(|)> To combine or merge the data of 2 commands

awk ----> To perform a task where the data is in a tabular form