与“"类似的Ada命令行重定向器是什么? [英] What is the Ada command line redirector that is analogous to ">"?

问题描述

此处的Ada noob(通常也不太适合命令行使用).我正在寻找与DOS中的>"类似的Ada命令行重定向器.

Ada noob here (and also not so hot with the command line in general). I am looking for the Ada command line redirector that would be analogous to ">" in DOS.

我正在命令行shell中运行Ada应用程序. (威廉·惠特克的话，如果有帮助的话).我使用"@"命令来获取WORDS应用程序，以从文本文件中读取术语列表.

I am running an Ada application in a command line shell. (William Whitaker's WORDS, if that is helpful). I use the "@" command to get the WORDS application to read the list of terms from a text file.

我希望将输出写入文件，而不只是出现在命令外壳中.我确实看过 http://www.ada-auth .org/standards/12rm/html/RM-A-15.html ，但没有看到任何要重定向的内容*.

I want the output to be written to a file, not to just appear in the command shell. I did look at http://www.ada-auth.org/standards/12rm/html/RM-A-15.html but didn't see anything for redirect*.

还可以帮助了解ADA命令行重定向器是否创建新文件，或者我是否必须首先自己做.

Also helpful to know would be whether the ADA command line redirector creates the new file or whether I have to do that myself first.

我需要使用Ada PUT命令吗? Ada.Text_IO?如果是这样，您能指出我如何使用这些命令的语法资源吗?我以前从未用过Ada.

Do I need to use the Ada PUT command? Ada.Text_IO? If so, can you point me to a resource for the grammar of how to use those commands? I've never used Ada before.

有什么想法吗?感谢您的帮助.

Any thoughts? Thanks for your help.

推荐答案

威廉·惠特克的话包含一个交互式命令行解释器，但是您似乎想使用从另一个程序控制它命令行模式.具体细节取决于您选择的环境.作为使用bash的具体示例，不是从始终写入WORD.OUT的@<file>进行读取，而是执行words，后跟标准输入中的单词列表.结果显示在标准输出上:

William Whitaker's Words includes an interactive command line interpreter, but it looks like you want to control it from another program using command-line mode. The exact details depend your chosen environment. As a concrete example using bash, instead of reading from @<file>, which always writes to WORD.OUT, execute words followed by a list of words on standard input; the results appear on standard output:

$ ./words amo amas
am.o                 V      1 1 PRES ACTIVE  IND 1 S    
amo, amare, amavi, amatus  V (1st)   [XXXAO]  
love, like; fall in love with; be fond of; have a tendency to;

am.as                N      1 1 ACC P F                 
ama, amae  N (1st) F   [XXXDO]    lesser
bucket; water bucket; (esp. fireman's bucket);
am.as                V      1 1 PRES ACTIVE  IND 2 S    
amo, amare, amavi, amatus  V (1st)   [XXXAO]  
love, like; fall in love with; be fond of; have a tendency to;

从标准输出中，您还可以重定向结果到文件；从python开始，您可以使用commands或subprocess；在Java中，对于示例，您可以使用exec()或ProcessBuilder:

From standard output, you can also redirect the results to a file; from python, you might use commands or subprocess; in Java you might use exec() or ProcessBuilder, for example:

ProcessBuilder pb = new ProcessBuilder("./words", "amo", "amas", "amat");

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