The IBM webpage only covers a few of the JCL DD parameters. There are more at pp. 486ff in Doug Lowe, MVS JCL (1994) here: http://library.lol/main/6784CBC9EE9BBA5AD26993F497514661 It's still a rather rough fit, though I'm still pretty sure the connection exists. Keep in mind that Unix dd dates to the early…
Slightly off topic and not sure if this is allowed but I've a copy of MVS JCL by Doug Lowe and rather than dump it I'd be more than happy to send it free of charge to anyone in the UK. It's in excellent condition other than a bit of staining on the outer rear cover https://www.amazon.co.uk/MVS-JCL-370-XA-JES/dp/0911625852…
IBM 的网页只涵盖了一小部分 JCL DD 参数。更多内容可以看 Doug Lowe 的《MVS JCL》（1994）第 486 页起，链接：http://library.lol/main/6784CBC9EE9BBA5AD26993F497514661 虽说对应得还是有点牵强，但我依然相当确信这二者之间是有渊源的。别忘了 Unix dd 最早可以追溯到早期……
The IBM webpage only covers a few of the JCL DD parameters. There are more at pp. 486ff in Doug Lowe, MVS JCL (1994) here: http://library.lol/main/6784CBC9EE9BBA5AD26993F497514661 It's still a rather rough fit, though I'm still pretty sure the connection exists. Keep in mind that Unix dd dates to the early…
稍微有点偏题，也不确定这合不合规，但我手头有一本 Doug Lowe 写的《MVS JCL》，与其扔掉，我非常乐意免费寄给英国境内的任何人。除了封底外侧有点污渍以外，品相极佳 https://www.amazon.co.uk/MVS-JCL-370-XA-JES/dp/0911625852……
Slightly off topic and not sure if this is allowed but I've a copy of MVS JCL by Doug Lowe and rather than dump it I'd be more than happy to send it free of charge to anyone in the UK. It's in excellent condition other than a bit of staining on the outer rear cover https://www.amazon.co.uk/MVS-JCL-370-XA-JES/dp/0911625852…