Getting_familiar_with_linux.txt

Some of the mentioned command will help you getting familiar to Linux and hence bash or shell scripting

1. pwd -->

When you first open the terminal, you are in the home directory of your user. To know which directory you are in, you can use the "pwd" command. It gives us the absolute path, which means the path that starts from the root. The root is the base of the Linux file system. It is denoted by a forward slash( / ). The user directory is usually something like "/home/username".

2. ls -->

Use the "ls" command to know what files are in the directory you are in. You can see all the hidden files by using the command "ls -a".

3. cd -->

Use the "cd" command to go to a directory. For example, if you are in the home folder, and you want to go to the downloads folder, then you can type in "cd Downloads". Remember, this command is case sensitive, and you have to type in the name of the folder exactly as it is.

4. mkdir & rmdir -->

Use the mkdir command when you need to create a folder or a directory. For example, if you want to make a directory called “Play”, then you can type "mkdir Play". Remember, as told before, if you want to create a directory named "Play GO", then you can type "mkdir Play\ GOâ". Use rmdir to delete a directory. But rmdir can only be used to delete an empty directory. To delete a directory containing files, use rm.

5. rm -->

Use the rm command to delete files and directories.  Use "rm -r" to delete just the directory. It deletes both the folder and the files it contains when using only the rm command.

6. touch -->

The touch command is used to create a file. It can be anything, from an empty txt file to an empty zip file. For example, "touch new.txt".