Simple Shell

Flowchart nodes

• Init SHELL

• Issue prompt

• READ LINE

• ENTER

• Store characters in buffer

• EOF

• END

• Strtok: tokenize string in buffer

• "Error" Malloc

• Command [0] "exit"

• FORK

• CHILDREN PID

• PARENT PPID

• WAIT

• Stat Return 0, if the file is Found.

• Fork "error"

• Stat == 0 Stat(Command[0])

• EXECVE execve (command [0], command  NULL)

• get_ent "PATH"

• Strtok: Split the   string and each folder  its storage in folders.

• Folders [i] != NULL

• return (Command[ 0])

• Found File

• readdir Read the files

• Folder [i] => Function strcat (function "i") strcat (function, dir -> d_name

• END

• Flecha (binary/octet-stream)