Linux基本命令

ls: Lists files and directories.
- Usage: ls, ls -l (long format), ls -a (including hidden files)
cd: Changes the current directory.
- Usage: cd [directory], cd .. (parent directory), cd (home directory)
pwd: Displays the path of the current working directory.
- Usage: pwd
cp: Copies files and directories.
- Usage: cp [source] [destination], cp -r [source_directory] [destination_directory] (recursive copy)
mv: Moves or renames files and directories.
- Usage: mv [source] [destination], mv [old_name] [new_name]
rm: Removes files and directories.
- Usage: rm [file], rm -r [directory] (recursive remove)
mkdir: Creates new directories.
- Usage: mkdir [directory_name]
touch: Creates a new empty file or updates the timestamp of an existing file.
- Usage: touch [file_name]
cat: Concatenates and displays the content of files.
- Usage: cat [file], cat [file1] [file2] > [new_combined_file]
grep: Searches for a specific pattern in files or input.
- Usage: grep '[pattern]' [file], cat [file] | grep '[pattern]'
find: Searches for files and directories based on various criteria.
- Usage: find [directory] -name '[pattern]', find [directory] -type f (files only)
sudo: Executes commands with superuser privileges.
- Usage: sudo [command]
chmod: Changes the permissions of files or directories.
- Usage: chmod [permissions] [file]
chown: Changes the owner and group of files or directories.
- Usage: chown [user]:[group] [file]
df: Displays disk space usage.
- Usage: df, df -h (human-readable format)
du: Displays the disk usage of files and directories.
- Usage: du, du -h (human-readable format)
ps: Shows information about active processes.
- Usage: ps, ps -aux
kill: Terminates processes.
- Usage: kill [process_id], kill -9 [process_id] (force kill)
nano, vi, emacs: Text editors for editing files.
- Usage: nano [file], vi [file], emacs [file]
man: Displays the manual page for other commands.
- Usage: man [command]