WSH is simple implementation of linux shell written in c inspired by LSH that is the subject of a tutorial on Brennan blog. It demonstrates the basics of how a shell works. That is: read, parse, fork, exec, and wait. Since its purpose is just for me learning (not feature completeness or even fitness for casual use), it has many limitations, including:
- Commands must be on a single line.
- Arguments must be separated by whitespace.
- No quoting arguments or escaping whitespace.
- No piping or redirection.
- Only builtins are:
cd,help,exit.
You can use basic cc src/main.c to compile, and then ./a.out to run, or use gcc with -o <file_name>,
or other c compiler. If you would like to use the standard-library based implementation of
lsh_read_line(), then you can do: gcc -DWSH_USE_STD_GETLINE -o lsh src/main.c.
This code is in the public domain (see UNLICENSE for more details). This means you can use, modify, and distribute it without any restriction. I appreciate, but don't require, acknowledgement in derivative works.