Lecture II

In this video lecture, the presenter focuses on teaching the basics of Linux bash navigation. The emphasis is given to the importance of understanding of terminal commands and relevance for navigating supercomputers. The lecture begins with an introduction to the terminal. Key commands such as pwd (print working directory), cd (change directory), ls (list files), and clear (clear the terminal window) are explained and demonstrated. The lecture covers essential file commands like touch (create empty files), nano (text editor for file editing), cat (display file contents), cp (copy files), and mv (rename/move files or folders). Furthermore, the presenter shows file upload via FTP and introduces additional commands like head (display first few lines of a file), tail (display last few lines of a file), and wc (word count and character count). The lecture concludes by highlighting the usefulness of the du (disk usage) command and briefly mentioning other system commands such as echo, whoami, and passwd for basic system interactions.