如何调用从Tcl脚本的bash命令？ [英] How to call bash commands from tcl script?

问题描述

Bash的命令可以从一个交互式会话的tclsh。例如。在tclsh的会话，你可以有

Bash commands are available from an interactive tclsh session. E.g. in a tclsh session you can have

% ls

而不是

$ exec ls

不过，你不能有一个Tcl脚本它调用的bash命令直接（即无 EXEC ）。

我怎样才能让tclsh的认识而国米preting Tcl脚本文件的bash命令，就像它在交互式会话？

How can I make tclsh to recognize bash commands while interpreting tcl script files, just like it does in an interactive session?

我想有一些TCL封装（或类似的东西），它自动加载，而开展的交互式会话支持的bash commans的直接调用。我怎样才能在TCL脚本文件手动加载呢？

I guess there is some tcl package (or something like that), which is being loaded automatically while launching an interactive session to support direct calls of bash commans. How can I load it manually in tcl script files?

推荐答案

这是怎么回事的是，当你键入比如命令未知 proc已经得到调用 LS ，因为这不是一个现有的Tcl命令，默认情况下，该命令将检查如果命令是从一个交互式会话，并从顶层（而不是间接的调用进程内体），它的检查，看看是否在proc名称某处的路径上存在。您可以通过编写自己的PROC不明得到这样的事情。

What's going on here is that the unknown proc is getting invoked when you type a command like ls, because that's not an existing tcl command, and by default, that command will check that if the command was invoked from an interactive session and from the top-level (not indirectly in a proc body) and it's checking to see if the proc name exists somewhere on the path. You can get something like this by writing your own proc unknown.

有关这个良好的开端，检查的输出

For a good start on this, examine the output of

info body unknown

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