Today Learned below commands.

List Commands

ls -> it listed out all the files
ls -l -> it gave long listing items
ls -lh -> it returns items with human readable file size
ls -lS -> it sorted out the files
ls -lSh -> it sorted the files also it returns file with human readable format
ls -R -> returned all the files in the directory

whoami -> shows the current user
hostname -> shows the hostname
hostname -I -> shows the IP address of the user

Date Commands

date -> displayed current date
date –date=”tomorrow” -> prints the tomorrow date
date –date=”3 years ago” -> prints the date 3 years ago.

CAT Commands : Concatenate commands

cat > test1.text -> creates a new file
cat test1.text | less -> show the file in page fize
q -> to quit

ECHO Commands

echo “Hello world” -> it usually prints the data.

History Commands

history -> it displays the last 1000 commands executed in our machine. we can increase the limit
history 10 -> executes last 10 commands
history | head -> shows first 10 commands
history | tail -> last 10 commands
history !1000(event) -> executed the specified event command.

Remove command

rm -i test1.text -> it asks user permission whether to delete this or not
rm test1.text -> removes the files
rm * text -> removes all the files which are text file type.

Manual command

man ls -> shows all the information about ls command
man date -> displayes all the info about date command
z -> to down the page.
w -> to go up in the page.