The ls command is usually used to view the contents of the current directory or a targeted directory where you wanted to list the files in a specific folder.
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The ls -l command (long list format) lists files and directories together with additional information like permissions, owner, date of creation, etc.
The ls -a command lists all data, including hidden files (dot-files).
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The ls -lh command lists files in a human-readable format. Unlike the ls -l command alone, which lists the size of files in bytes only, the ls -lh command will show the exact size in: bytes(b), kilobytes(kb), megabytes(MB).
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If you want to know where the directories are from the output of an ls command use the ls -F. It will add a forward slash at the end of every directory name.
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Use The ls -R command if you want to list directories present in the path along with the files inside of them. This is called the recursive (R) feature.
The ls -ltr command shows the latest modified files or directories in order. The latest modified files are listed at the bottom while the oldest outputted files are listed at the top.
