tcsh-clonde is as project that aims to reproduce a complete unix shell, in this case tcsh shell. This project is the successor of minimalist-shell, but with way more features: more built-ins, an history, aliases handling, better error handling ...
You can find the documentation of tcsh here, which hence is the documentation of this project (partially).
After cloning the repository, you have nothing else to install since it is in C and without external libraries !
Compilation of binary using Makefile:
make
Launch the shell
./42sh
./42sh
[chetrit@chetrit tcsh-clone]$ ls
42sh include Makefile src tests
[chetrit@chetrit tcsh-clone]$ echo toto > tata
[chetrit@chetrit tcsh-clone]$ where cd
cd is a shell built-in
/usr/bin/cd
/bin/cd
[chetrit@chetrit tcsh-clone]$ repeat 3 echo a
a
a
a
[chetrit@chetrit tcsh-clone]$ ls | grep /bin/ls
[chetrit@chetrit tcsh-clone]$ rm tata
[chetrit@chetrit tcsh-clone]$ echo toto >> tata
[chetrit@chetrit tcsh-clone]$ cat tata
toto
[chetrit@chetrit tcsh-clone]$ echo toto >> tata
[chetrit@chetrit tcsh-clone]$ cat tata
toto
toto
[chetrit@chetrit tcsh-clone]$ echo `echo toto`
toto
[chetrit@chetrit tcsh-clone]$ which cd
cd: shell built-in command.
[chetrit@chetrit tcsh-clonde]$ cd Makefile
Makefile: Not a directory.
Don't worry, the shell makes a complete copy of your actual environment when launching it, which means you can mess up with your environnement without taking any risks !