- This is a basic shell implemented in C.
- Contributor - Divyanshu Talwar
- The shell does not exit on
Ctrl + C. - Built in functions -
cd,history,exit,help. - The shell's history is maintain in the form of a queue and is also written into
.ush_history, thus the shell remembers the commands, even if it is restarted. - The previous commands can be accessed by pressing the
up arrowand the next commands (if any) by pressing thedown arrow(implemented with the help of history feature inreadlinefunction). - It can run all the commands listed in the directories
/binor/usr/bin. - It can handle piping
|, redirection of stdin and/or stdout> and/or <. - The shell can
killonly those processes that are started by it, if it is not started in root mode (by default shell is not started in root mode ), else it can kill any process exceptinit. - The
helpcommand lists all the built in commands. - The
historycommand lists all the commands used so far(since the first use of the shell). - Any erroneous command results in
Command not found!as the output on stdout. - The shell exits if an
EOF characterorexitis typed on stdin. - Typing
enteronstdintakes the prompt to the next line.
- Background and Foreground jobs.
- Run
makecommand on the console and the Makefile would run the shell.