67 lines
2.0 KiB
HTML
67 lines
2.0 KiB
HTML
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<HTML>
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<HEAD>
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<STYLE type="text/css">
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H1 {color: black }
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H2 {color: maroon }
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H3 {color: #007090 }
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A.head:link {color: #0060a0 }
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A.head:visited {color: #3040c0 }
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A.head:active {color: white }
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A.head:hover {color: yellow }
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A.red:link {color: red }
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A.red:visited {color: maroon }
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A.red:active {color: yellow }
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</STYLE>
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</HEAD>
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<TITLE>Magic-7.3 Command Reference</TITLE>
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<BODY BACKGROUND=graphics/blpaper.gif>
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<H1> <IMG SRC=graphics/magic_title2.gif ALT="Magic VLSI Layout Tool Version 7.3">
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<IMG SRC=graphics/magic_OGL_sm.gif ALIGN="top" ALT="*"> </H1>
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<H2>shell</H2>
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<HR>
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Execute a command in a UNIX subshell
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<HR>
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<H3>Usage:</H3>
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<BLOCKQUOTE>
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<B>shell</B> [<I>command</I>] <BR><BR>
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<BLOCKQUOTE>
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where <I>command</I> is a valid UNIX command-line command.
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</BLOCKQUOTE>
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</BLOCKQUOTE>
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<H3>Summary:</H3>
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<BLOCKQUOTE>
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The <B>shell</B> command allows UNIX commands to be executed from
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the magic command line. This use is superceded by the Tcl
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interpreter, which executes shell commands directly from the
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interpreter prompt. Differences between the two uses is noted
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below.
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</BLOCKQUOTE>
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<H3>Implementation Notes:</H3>
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<BLOCKQUOTE>
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<B>shell</B> is implemented as a built-in command in <B>magic</B>.
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This is similar to the Tcl interpreter execution of shell commands
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directly from the Tcl command-line. The primary difference is that
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results from the shell interpreter are printed to the calling
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terminal with <B>shell</B>, and are printed to the console when
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invoked directly from Tcl. For example, note the difference in
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the output target for:
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<BLOCKQUOTE>
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<B>ls -l</B> <PRE> </PRE> <I>vs.</I><BR>
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<B>shell ls -l</B>
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</BLOCKQUOTE>
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</BLOCKQUOTE>
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<P><IMG SRC=graphics/line1.gif><P>
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<TABLE BORDER=0>
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<TR>
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<TD> <A HREF=commands.html>Return to command index</A>
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</TR>
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</TABLE>
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<P><I>Last updated:</I> October 8, 2004 at 3:55am <P>
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</BODY>
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</HTML>
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