2017-04-25 14:41:48 +02:00
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<HEAD>
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H1 {color: black }
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H3 {color: #007090 }
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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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2022-01-21 16:44:13 +01:00
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<H1> <IMG SRC=graphics/magic_title8_2.png ALT="Magic VLSI Layout Tool Version 8.2">
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2017-04-25 14:41:48 +02:00
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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 This use is superceded by the Tcl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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2022-01-21 16:44:13 +01:00
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<P><I>Last updated:</I> March 7, 2020 at 1:06pm <P>
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2017-04-25 14:41:48 +02:00
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