What are some commonly used Unix commands?

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Unix commands are essential tools for file management, process control, and system navigation in Unix-like operating systems.

ls: Lists files and directories in the current directory. Example: 'ls -l' for detailed listing.
cd: Changes the current directory. Example: 'cd /home/user' to navigate to the user's home directory.
cp: Copies files or directories. Example: 'cp file.txt /backup/' to copy 'file.txt' to the backup directory.
mv: Moves or renames files or directories. Example: 'mv oldname.txt newname.txt' to rename a file.
rm: Removes files or directories. Example: 'rm file.txt' to delete 'file.txt'. Use with caution!
mkdir: Creates a new directory. Example: 'mkdir new_folder' to create a directory named 'new_folder'.
grep: Searches for specific patterns in files. Example: 'grep 'error' logfile.txt' to find 'error' in 'logfile.txt'.
chmod: Changes file permissions. Example: 'chmod 755 script.sh' to set permissions for 'script.sh'.
ps: Displays currently running processes. Example: 'ps aux' for a detailed view of all processes.
man: Displays the manual for commands. Example: 'man ls' to read the manual for the 'ls' command.

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