Commonly used Linux Commands

1. ls command

ls command is used to list the contents of the current directory.

2. cd command

cd command is used to change directories.

cd . - Takes you to the parent of the current directory
cd - Takes you to the root directory
cd PATH - Takes you to the specified PATH

3. uname command

It is used to print system information.

-a, --all
print all information, in the following order:
-s, --kernel-name
print the kernel name
-n, --nodename
print the network node hostname
-r, --kernel-release
print the kernel release
-v, --kernel-version
print the kernel version
-m, --machine
print the machine hardware name
-p, --processor
print the processor type
-i, --hardware-platform
print the hardware platform
-o, --operating-system
print the operating system
--help
display this help and exit
--version
output version information and exit