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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><HTML><HEAD><TITLE>Nested if/then Condition Tests</TITLE><METANAME="GENERATOR"CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+"><LINKREL="HOME"TITLE="Advanced Bash-Scripting Guide"HREF="index.html"><LINKREL="UP"TITLE="Tests"HREF="tests.html"><LINKREL="PREVIOUS"TITLE="Other Comparison Operators"HREF="comparison-ops.html"><LINKREL="NEXT"TITLE="Testing Your Knowledge of Tests"HREF="testtest.html"><METAHTTP-EQUIV="Content-Style-Type"CONTENT="text/css"><LINKREL="stylesheet"HREF="common/kde-common.css"TYPE="text/css"><METAHTTP-EQUIV="Content-Type"CONTENT="text/html; charset=iso-8859-1"><METAHTTP-EQUIV="Content-Language"CONTENT="en"><LINKREL="stylesheet"HREF="common/kde-localised.css"TYPE="text/css"TITLE="KDE-English"><LINKREL="stylesheet"HREF="common/kde-default.css"TYPE="text/css"TITLE="KDE-Default"></HEAD><BODYCLASS="SECT1"BGCOLOR="#FFFFFF"TEXT="#000000"LINK="#AA0000"VLINK="#AA0055"ALINK="#AA0000"STYLE="font-family: sans-serif;"><DIVCLASS="NAVHEADER"><TABLESUMMARY="Header navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><THCOLSPAN="3"ALIGN="center">Advanced Bash-Scripting Guide: An in-depth exploration of the art of shell scripting</TH></TR><TR><TDWIDTH="10%"ALIGN="left"VALIGN="bottom"><AHREF="comparison-ops.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="80%"ALIGN="center"VALIGN="bottom">Chapter 7. Tests</TD><TDWIDTH="10%"ALIGN="right"VALIGN="bottom"><AHREF="testtest.html"ACCESSKEY="N">Next</A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><DIVCLASS="SECT1"><H1CLASS="SECT1"><ANAME="NESTEDIFTHEN"></A>7.4. Nested <ICLASS="FIRSTTERM">if/then</I> Condition Tests</H1><P>Condition tests using the <BCLASS="COMMAND">if/then</B>	 construct may be nested. The net result is equivalent to using the	 <BCLASS="COMMAND">&#38;&#38;</B> compound comparison operator above.</P><P><TABLEBORDER="0"BGCOLOR="#E0E0E0"WIDTH="100%"><TR><TD><PRECLASS="PROGRAMLISTING">   1&nbsp;if [ condition1 ]   2&nbsp;then   3&nbsp;  if [ condition2 ]   4&nbsp;  then   5&nbsp;    do-something  # But only if both "condition1" and "condition2" valid.   6&nbsp;  fi     7&nbsp;fi</PRE></TD></TR></TABLE></P><P>See <AHREF="bash2.html#EX79">Example 34-4</A> for an example of nested         <TTCLASS="REPLACEABLE"><I>if/then</I></TT> condition tests.</P></DIV><DIVCLASS="NAVFOOTER"><HRALIGN="LEFT"WIDTH="100%"><TABLESUMMARY="Footer navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top"><AHREF="comparison-ops.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="index.html"ACCESSKEY="H">Home</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top"><AHREF="testtest.html"ACCESSKEY="N">Next</A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">Other Comparison Operators</TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="tests.html"ACCESSKEY="U">Up</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top">Testing Your Knowledge of Tests</TD></TR></TABLE></DIV></BODY></HTML>
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