MUMPS/Command A

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command A or a

Currently, the letter A is the abbreviation for the command Command ASSIGN. This command is not implemented by all vendors.
Currently, the letter A is the prefix for several commands:

Currently, the letter sequence AB is the abbreviation for the Command ABLOCK.

Currently, the letter sequence ASTA is the abbreviation for the Command ASTART.

Currently, the letter sequence ASTO is the abbreviation for the Command ASTOP.

Currently, the letter sequence AUNB is the abbreviation for the Command AUNBLOCK.

 === Former Non-Standard Command ===
The letter A used to be the abbreviation for the Command ASK.  No Standard M implementation is required to implement this command. Non-Standard M systems may include the Command ASK.