Shell Programming and Scripting

it was Q in my last midterm
1.he asks us to create new schema as the follwing and i do
$ ./new_schema.sh shema_name.sh schema_name field_names
NEW SCHEMA 'shema_name.sh' WITH FIELDS 'schema_name', 'field_names' "list"CREATED.

2.stord in a file called schema.txt
he told us that this file should contains the SCHEMA_NAME followed by the FIELD_NAMEs.
3.our script should check if the SCHEMA_NAME already exists and if so it should print an appropriate error message and exit. If it doesn't exist, then the script should append the information to the end of the file and print a message that the schema has been created. cam you help me with this and with more details.

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