The storage access protocol is the SCSI blockcommand set.
存储访问协议就是 SCSI 块命令集。
2
Using the subshell, you can collectively redirect their standard and error output for the entire block instead of for each individual command.
通过使用子外壳，可以对整个块（而不是单个命令）的标准和错误输出进行集体重定向。
3
The command extension definition is similar to the task command definition, except that the steps used for extending the base command are specified within the block.