vanhalen42/oh-my-gaush

oh my gaush! (gaurav's shell).A shell implemented in C.

oh-my-gaush

oh my gaush! (gaurav's shell).A shell implemented in C.

you can run make which makes the executable oh-my-gaush which will run the shell

files:

• header.h: contains all header files
• main.c : contains driver code
• Makefile : to compile the code
• parser.c : used for parsing the command into command and arguments
• pinfo.c: to implement pinfo
• processes.c: to implement foreground and background processes
• shell_prompt.c: to diplay the shell prompt
• built_in.c: for built in fucntions i.e. cd, pwd and echo
• ls.c : to implement working of ls

commands implemented

• cd, pwd, ls with flags, echo
• non-terminal commands

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Extending the shell

Added files:

• signal_handler.c: is used to handle signals of Ctrl C(^C) and Ctrl Z(^Z).
• replay.c: implemented replay command (replays a command after intervals of t till period T is reached)

Modified files:

• main.c: for replay, pipelining.
• processes.c: for I/O redirection, implentation of fg,bg, sig, and jobs.
• parser.c: for parsing for <,>, >> and | symbols

commands (features) implemented:

• I/O redirection: the execute_command(in processes.c) function does the io redirection based on the io_in and io_out variable passed to it.
• Command pipelines : the pipe_parser(in paser.c)command parses a givne command into subsequent smaller ones and pipelining is implemented in main.c
• fg,bg, jobs and sig functions: implemented in the execute_command(in processes.c)
• Signal_handling: the functions ctrl_C and ctrl_Z handle the flow of code when thre respectiv signals are given to the program.
• replay: done in replay.c