These system crontabs have one additional field between the fifth time entry (day) and the command.
在这些系统 crontab 中，在第五个时间字段（星期）和命令之间增加了一个字段。
The "abbrev" field in the hash entry is used to define command-line switches, so later I can define an -artist switch that can be abbreviated to -i based on the % freedb_searches information.
在该散列条目中的“abbrev”字段被用来定义命令行开关，这样，随后我可以基于% freedb_searches信息定义一个- artist开关，它可以被简写为- i。
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