Shell Programming and Scripting

my teacher assigned me an assignment about text database shell programming but I don't know anything about that. here is about problem. I must submit this assignment to my teacher before 3 August. contact me at **deleted**, thank you

Given a text database file for student registration name 'reg.acc' with the following schema. Each record is separate with a line break and each field is separate with a colon (colon separated value).

Table Definition: (colon separated value)
NE:NT:ID:ME:MO:RN

Field Definition: (Field-Value Format)
NE: Name in English
NT: Name in Thai
ID: Student ID
EM: E-mail Address
MO: Mobile Phone Number
RN: Position of the Record Number.

You are to write a shell program 'reg.bash' that process a single table student registration text database.
You can use either ID or RN as search Key. That is Key=(ID|RN). Your program should support the
following operations:
AddRecord - Add the record to the table. The operation not include the RN field.
Usage: reg.bash AddRecord record-text
Example: reg.bash AddRecord Tom::12345678:tom@hotmail.com:0811234567
Find - Find the record using either the record number or student ID.
Usage: reg.bash Find Key Value
Example 1: reg.bash Find ID 12345678
Output: Tom::12345678:tom@hotmail.com:0811234567:5
Example 2: reg.bash Find RN 5
Output: Tom::12345678:tom@hotmail.com:0811234567:5
ViewDetail - View the detail of the record in the Field-Value Format
Usage: reg.bash ViewDetail Key Value # Key=(RN|ID)
Example reg.bash ViewDetail ID 12345678
Output: NE:Tom
NT:
ID:12345678
EM:tom@hotmail.com
MO: 0811234567
RN:5
ListAll - List all records in the table in a Colon Separated Value Format
ListAllDetail - List all records in the table in a Field-Value Format
Delete - Delete the record.
Usage: reg.bash Delete Key Value
Example 1: reg.bash Delete ID 12345678
Example 2: reg.bash Delete RN 5
Replace - Replace existing record
Usage: reg.bash Replace Key Value Record
Example 1: reg.bash Replace ID 12345678 Peter::12345678:tom@hotmail.com::5
Example 2: reg.bash Replace RN 5 Tony::12345678:tom@hotmail.com::5

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