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Linux Basics

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Part 1

If you want to change your current directory, you can use "cd" command.
cd your_destination_directory
changing directory to root directory
cd /
changing directory to your home directory
cd home/your_user_name
OR you can use ~ for changing to your home directory
cd ~
it will change your current directory to your home directory.
if you need to change directory to your "documents" directory /home/you/documents, you can command
cd ~/documents
you can quickly come back to your home directory from any directory
cd ~

Part 2


If you want to see path settings in linux, apply the following command

echo $PATH

it will show current path settings.

if you run echo * command, it will show a list of files/folder in current directory.

Now if you want to see a list of files/folders which are starting with D, apply echo D*

If you need to see a list of files/folders which are ending with s, apply echo *s

If you need to know your home directory location, use echo ~

If you apply echo /usr/*/share it will show you a list which location match /usr/ then anything then /share

If you want to do match in linux terminal, use as echo $((2+2)) Here You must start with $(( and end with ))

You can also do a long match like echo $(( ((2+2)-(1+1))*2 )) it will output 4
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