Essential Tools
Core file operations, text processing, I/O redirection, searching with grep, links & archives, and system documentation. The foundation for every other domain.
File & directory operations
NewCreate, copy, move, and remove files and directories. Inspect file metadata with stat, identify types with file, and locate files with find.
Viewing & editing text
NewDisplay file contents with cat/head/tail, count lines with wc, compare files with diff, and transform text with sort and cut.
I/O redirection & pipes
NewRedirect stdout/stderr with >, >>, 2>, and &>. Chain commands with pipes (|) and split output with tee.
Searching with grep & regex
NewSearch file contents with grep -i/-r/-E, use basic and extended regular expressions, and find files by name or type with find.
Links & archives
NewCreate hard links and symbolic links with ln. Archive and compress with tar -czf/-xzf/-tjf.
System documentation
NewLook up command help with man and --help. Locate binaries with which and check system info with uname.