codeblocks-ep/help/html/programmerHelp/make/Commands.html at master · maifeeulasad/codeblocks-ep · GitHub

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Node:<a name="Commands">Commands</a>,
Next:<a rel="next" accesskey="n" href="Using-Variables.html#Using%20Variables">Using Variables</a>,
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<h2 class="chapter">Writing the Commands in Rules</h2>

   <p>The commands of a rule consist of shell command lines to be executed one
by one.  Each command line must start with a tab, except that the first
command line may be attached to the target-and-prerequisites line with a
semicolon in between.  Blank lines and lines of just comments may appear
among the command lines; they are ignored.  (But beware, an apparently
"blank" line that begins with a tab is <em>not</em> blank!  It is an
empty command; see <a href="Empty-Commands.html#Empty%20Commands">Empty Commands</a>.)

   <p>Users use many different shell programs, but commands in makefiles are
always interpreted by <code>/bin/sh</code> unless the makefile specifies
otherwise.  See <a href="Execution.html#Execution">Command Execution</a>.

   <p>The shell that is in use determines whether comments can be written on
command lines, and what syntax they use.  When the shell is
<code>/bin/sh</code>, a <code>#</code> starts a comment that extends to the end of
the line.  The <code>#</code> does not have to be at the beginning of a line.
Text on a line before a <code>#</code> is not part of the comment.

<ul class="menu">
<li><a accesskey="1" href="Echoing.html#Echoing">Echoing</a>:                      How to control when commands are echoed.
<li><a accesskey="2" href="Execution.html#Execution">Execution</a>:                    How commands are executed.
<li><a accesskey="3" href="Parallel.html#Parallel">Parallel</a>:                     How commands can be executed in parallel.
<li><a accesskey="4" href="Errors.html#Errors">Errors</a>:                       What happens after a command execution error.
<li><a accesskey="5" href="Interrupts.html#Interrupts">Interrupts</a>:                   What happens when a command is interrupted.
<li><a accesskey="6" href="Recursion.html#Recursion">Recursion</a>:                    Invoking <code>make</code> from makefiles.
<li><a accesskey="7" href="Sequences.html#Sequences">Sequences</a>:                    Defining canned sequences of commands.
<li><a accesskey="8" href="Empty-Commands.html#Empty%20Commands">Empty Commands</a>:               Defining useful, do-nothing commands.
</ul>

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