The pwd (print working directory) command displays the current directory the user is in. It is essential for navigation in the terminal.
The chown command is used to change the owner of a file or directory. You can also use it to change the group ownership with the syntax chown [user]:[group] [file].
The less command allows you to view large files one page at a time. It is more advanced than more, as it allows both forward and backward navigation within the file.
The grep command is used to search for patterns within a file or output. It supports regular expressions and is an essential tool for text searching in Linux.
The chmod (change mode) command is used to modify the file permissions for users, groups, and others. Permissions can be set using either symbolic (r, w, x) or octal (numeric) notation.
