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6 Cards in this Set
- Front
- Back
REPL |
Read-Evaluate-Print-Loop (loop (print (eval (read)))) read - read expression, parse into data struct eval - takes data struct and evaluates print - takes result of eval, and print to user loop - afterwards it is returned to read state |
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Benefits of REPL |
- access to features of OS and provide access to programming abilities within an SHELL - instant prototyping - great for novice for quick feedback |
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SYSTEMD |
Linux INIT System, bootstraps user space and manage processes. - Unifies behaviors across ditributions |
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How do you overwrite default linux container settings? |
copy `/usr/lib64/systemd/system` to `/etc/systemd/system` and modify the settings. (Updates do not get applied) or create directory named unit.d within /etc/systemd/system, and add a drop-in file `name.conf` (Updates are applied) |
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Serialization |
Translating data structs or objects into format that can be stored (through network, storage, etc). Also known as Marshalling The reverse is called: Unmarshalling/Deserialization |
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Normalization |
Organizing columns (attributes) and tables(relations) to reduce data redundancy and improve data integrity. |