2.5.3 Pipe command support in AmigaShell
Description
This article is from the Amiga FAQ, by Ignaz Kellerer with numerous contributions by others.
2.5.3 Pipe command support in AmigaShell
There is a little known and quite useful undocumented feature built in the 2.04+ AmigaShell, that is, AmigaShell knows about the `Pipe' command. By setting the local variable _PCHAR, you can use pipes without even entering the Pipe command. AmigaShell will prepend it on the command line automatically if it sees the pipe separator command specified by _pchar on the command line.
Thus, after the command: 1> Set _pchar "|"
(1)
the above examples can be used like this: 1> List SYS: | More or 1> List SYS: NOHEAD | Sort IN: OUT: | More
Those familiar with the UNIX pipes will notice how the usage is very similar to the UNIX pipe usage.
---------- Footnotes ----------
(1) The quotes around the vertical bar are important, to avoid AmigaShell interpreting the command as an attempt to use PIPE:, if _PCHAR is already set (for example if the Shell is started from within another one).
Continue to:
My Books
