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wc

Name

wc -- bytes, characters, words, lines count

Synopsis

wc [Flags] <files...>
 
 Flags: 
       -b | --bytes 
       -c | --chars 
       -h | --help

Description

The wc rust program displays the number of bytes, characters, words, lines count available in the file or files given to it from the standard input.

If no flag is provided with no filename, the program drops into the standard input stdin. Then you can type in whatever you want, and when this is exited a temporary file temp.txt is created for the user. The user can then use wc to take several counts utilities that the wc provides.

If only one file or more given, the progam displays all counts except for number of characters which is only avaliable via the flag -c or --chars.

A character is defined by a single letter contained in a word.

A line is defined as a string of characters delimited by a newline character.

A word is defined as a string of characters delimited by white space characters.

If wrong flag or flags are used, a default display is seen on the standard output. This is done intentionally to accommodate for user's mistype.

The following flags are available:

-b | --bytes		Listing bytes count of the file or files
-c | --chars		Listing character count of the file or files
-h | --help		Help

Inspiration

From wc utility on *nix OS.

Caveat

  1. While this rust program might not have been thoroughly tested like wc from the *nix OSes. It makes available wc provision on all OS that uses @rust-lang.

  2. The flags were "hand-picked" i.e manually parsed, instead of using crate like clap or structopt and the rest. This is because the flags to be used are very little. Joke: Why kill an ant with a hammer or why kill at all :)! This may change later without affecting the functionality of the program.

Not Included

The number of lines and other counters are displayed when the file or files are used on the wc program without any flag. So the flag -l or --line is not included just to make this wc "feel" different.