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中国DOS联盟论坛 The time now is 2026-08-11 13:04 |
47,811 topics / 349,897 posts / today 0 new / 48,256 members |
| DOS批处理 & 脚本技术（批处理室） » [Help] Question about the pipe '|' |
| Printable Version 754 / 3 |
| Floor1 wuxianglin2000 | Posted 2009-02-28 04:50 |
| 初级用户 Posts 17 Credits 34 | |
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Under pure DOS, when calling an executable that needs a keypress confirmation. If I press Y according to the prompt, it can execute normally to the end. But when using the pipe command echo Y|a.exe, the program hangs when it reaches the prompt line, and there is no response no matter what I press on the keyboard, but the indicator lights are all normal. Also, this command works correctly with other executable programs. What is causing this?
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| Floor2 netbenton | Posted 2009-02-28 10:17 |
| 银牌会员 Posts 752 Credits 1,916 From 广西 | |
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I think a.exe is not receiving standard input
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| Floor3 xzyx | Posted 2009-03-02 00:02 |
| 初级用户 Posts 19 Credits 50 | |
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If you want a program to support pipes, the program itself needs to create the pipe and connect to the pipe; this has to be implemented when writing the program. In other words, whether a program can use pipes is determined by the program itself...
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| Floor4 wuxianglin2000 | Posted 2009-03-02 03:44 |
| 初级用户 Posts 17 Credits 34 | |
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Thanks!
It should be standard input, right? Following the prompt, if I type Y directly, it can continue running, and with another tool that comes with it, I can do it using the pipe command |
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