42sh

A fully POSIX compliant shell

Install

Clone libtowel and moulitest at the same level as your 42sh_posix project

git clone git@github.com:juschaef/libtowel.git
git clone git@github.com:yyang42/moulitest.git
$ ls
42sh_posix libtowel moulitest

Compile and Run

make
./42sh

Create Objects and Managers

make obj obj=product          # create an object
make mgr obj=product          # create a manager

AST-Parser

To run the tests

make check_ast

High level view with diff tests

To have a high level view of the AST, look at the ast_diff_tests here:

/tests/ast_diff_tests/features_ast

Low level view with print files

The recursive print files used to print the AST is a good way to understand how to use the ast

/srcs/ast/nodes/ast_*/ast_*_print_rec

Status

The AST is not finished. It currently implements (see also diff tests):

• compound_list (commandes separated with ";", "&" or "\n"
• andor "&&" "||"
• pipe "|"
• redirections < > >> << ... (all of them)
• assignment key=value echo abc
• simple_command
• compound commands
  • brace_group
  • subshell
  • for_clause
  • case_clause (not yet)
  • if_clause
  • while_clause
  • until_clause

Command Line

• ctrl + a : move to the begin of the line
• ctrl + b / arrow left : move one char left
• ctrl + c : send SIGINT / clear current line
• ctrl + d : leave shell in case of empty line
• ctrl + e : move to the end of the line
• ctrl + f / arrow right : move one char right
• ctrl + g : nothing
• ctrl + h : nothing
• ctrl + i : nothing
• ctrl + j / enter : validate current line
• ctrl + k : kill (copy) the text from the cursor to the end of the line
• ctrl + l : clear the screen
• ctrl + m / enter : validate current line
• ctrl + n / arrow down : move down through the history list
• ctrl + o : nothing
• ctrl + p / arrow up : move up through the history list
• ctrl + q : move one word backward
• ctrl + r : nothing
• ctrl + s : move one word forward
• ctrl + t : drag the character before the cursor position
• ctrl + u : kill (copy) the text from the cursor to the begin of the line
• ctrl + v : nothing
• ctrl + w : kill (copy) the word behind the cursor
• ctrl + y : Yank the most recently killed text back
• ctrl + z : send SIGTSTP (ignored)
• delete : remove the character on the left
• suppr / ctrl + d : remove the character on the right
• tabulation : completion of the current word

Not implemented yet

• ctrl + r : search backward in the history
• ctrl + i : start and end copy mode
• ! : check the last

Testing Job Control

Test 1:

• ping google.com

• CTRL+Z

• jobs # check job is in background and stopped

• bg # ping should restart printing its output

• CTRL+Z # should NOT stop the task in background

• fg # now the job is in foreground

• CTRL+Z # should stop the task

• jobs # check the task is in background and stopped

• bg # should run the task in bg

• kill -TSTP %+ # stop the job

• jobs # check job in bg and stopped