ls: List files and directories in the current directory.
ls
cd: Change directory.
cd [directory]
pwd: Print the current working directory.
pwd
cp: Copy files or directories.
cp [source] [destination]
mv: Move or rename files or directories.
mv [source] [destination]
rm: Remove files or directories.
rm [file/directory]
nano (or vim): Text editors for creating and editing files.
nano [filename]
grep: Search for a specific pattern in files.
grep [pattern] [file]
chmod: Change file permissions.
chmod [permissions] [file]
man: Access the manual pages for commands.
man [command]
These commands form the basic toolkit for navigating, manipulating, and interacting with files and directories in a Linux environment. As a developer, you'll likely use these frequently while working on software development projects.