Wc utility
The wc utility is a Unix command-line tool that reports counts of lines, words, bytes, characters, and related properties in files or input streams.
The Quick Python Book, Fourth Edition
The wc utility is a Unix command-line tool that counts lines, words, and bytes in files or input streams and can report the maximum line length.
- How it is used
- Uses `wc` as the behavior to reproduce in a Python command-line counting program.
- How deep it goes
- Works through option defaults and longest-line tracking, while deferring byte-versus-character handling as a harder extension.
- Examples
- Uses Python `argparse` implementations and comparison with a system `wc` command.
- What you can do after
- Build it from scratch as a Python command-line counter with selectable totals and an optional longest-line result.
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Tiny Python Projects: Learn coding and testing with puzzles and games
wc is a Unix command-line utility that reports counts of bytes, characters, lines, and words in files or standard input.
- How it is used
- Counts text from files or command pipelines to support quick command-line inspection.
- How deep it goes
- Explains counters, line iteration, splitting, formatting, and flags, but treats punctuation-aware word detection as later work.
- Examples
- Demonstrates fox.txt, multiple files, grep output, redirection, and a Python reimplementation named wc.py.
- What you can do after
- Build it from scratch in Python with file, STDIN, counting, formatting, and option-handling support.
Read how Tiny Python Projects: Learn coding and testing with puzzles and games explains wc utility →
Related concepts
- input/output redirectionuses · Input/output redirection is a shell technique that changes where a command reads input or sends output, routing its streams to files or other destinations.
- file objectmeasures · A file object is a program-accessible representation of an open file or stream, including its access state and input/output operations.
- command-line argumentconfigured by · A command-line argument is a value supplied to a program when it is invoked, either as positional input or as an option that configures its behavior.
- curlproduced by · curl is a command-line tool for transferring data to or from network resources using supported protocols; the name also refers to its transfer library, libcurl.
- word countmeasures · A metric that counts word units in text, either overall or for a specified word, according to the applicable segmentation rule.
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