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<div><a href="index.html" title="">Macaulay2Doc</a> > <a href="___The_sp__Macaulay2_splanguage.html" title="">The Macaulay2 language</a> > <a href="_system_spfacilities.html" title="">system facilities</a></div>
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<div><h1>system facilities</h1>
<div><!--empty documentation body--></div>
<div><h3>Menu</h3>
<h4>Loading files:</h4>
<ul><li><span>autoload, see <span><a href="_autoload_lp__Symbol_cm__String_rp.html" title="arrange for a function to be loaded automatically">autoload(Symbol,String)</a> -- arrange for a function to be loaded automatically</span></span></li>
<li><span><a href="_initialization_spfile.html" title="">initialization file</a></span></li>
<li><span><a href="_input.html" title="read Macaulay2 commands and echo">input</a> -- read Macaulay2 commands and echo</span></li>
<li><span><a href="_load.html" title="read Macaulay2 commands">load</a> -- read Macaulay2 commands</span></li>
<li><span><a href="_needs.html" title="read Macaulay2 commands if necessary">needs</a> -- read Macaulay2 commands if necessary</span></li>
</ul>
<h4>Echoing characters:</h4>
<ul><li><span><a href="_clear__Echo.html" title="turn off echoing">clearEcho</a> -- turn off echoing</span></li>
<li><span><a href="_set__Echo.html" title="turn on echoing">setEcho</a> -- turn on echoing</span></li>
</ul>
<h4>Dumping and restoring the state of the system:</h4>
<ul><li><span><a href="_dumpdata.html" title="dump state of the system to a file">dumpdata</a> -- dump state of the system to a file</span></li>
<li><span><a href="_loaddata.html" title="load state of the system from a file">loaddata</a> -- load state of the system from a file</span></li>
<li><span><a href="_restart.html" title="restart Macaulay2">restart</a> -- restart Macaulay2</span></li>
<li><span><a href="_add__Start__Function.html" title="add a startup function">addStartFunction</a> -- add a startup function</span></li>
<li><span><a href="_add__End__Function.html" title="add an ending function">addEndFunction</a> -- add an ending function</span></li>
</ul>
<h4>Interface to the operating system:</h4>
<ul><li><span><a href="_top_splevel_sploop.html" title="">top level loop</a></span></li>
<li><span><a href="_alarm.html" title="set an alarm">alarm</a> -- set an alarm</span></li>
<li><span><a href="_current__Directory.html" title="current working directory">currentDirectory</a> -- current working directory</span></li>
<li><span><a href="_exec.html" title="execute another program">exec</a> -- execute another program</span></li>
<li><span><a href="_exit.html" title="exit the program">exit</a> -- exit the program</span></li>
<li><span><a href="_fork.html" title="fork the process">fork</a> -- fork the process</span></li>
<li><span><a href="_getenv.html" title="get value of environment variable">getenv</a> -- get value of environment variable</span></li>
<li><span><a href="_process__I__D.html" title="the process identifier">processID</a> -- the process identifier</span></li>
<li><span><a href="_path.html" title="list of directories to look in">path</a> -- list of directories to look in</span></li>
<li><span><a href="_quit.html" title="quit the program">quit</a> -- quit the program</span></li>
<li><span><a href="_run.html" title="run an external command">run</a> -- run an external command</span></li>
<li><span><a href="_sleep.html" title="sleep for a while">sleep</a> -- sleep for a while</span></li>
<li><span><a href="_time.html" title="time a computation">time</a> -- time a computation</span></li>
<li><span><a href="_timing.html" title="time a computation">timing</a> -- time a computation</span></li>
<li><span><a href="_wait.html" title="wait for child process">wait</a> -- wait for child process</span></li>
</ul>
<h4>Variables with information about the state of the current process:</h4>
<ul><li><span><a href="_command__Line.html" title="the command line arguments">commandLine</a> -- the command line arguments</span></li>
<li><span><a href="_environment.html" title="the environment variables">environment</a> -- the environment variables</span></li>
<li><span><a href="_version.html" title="information about this version of the program">version</a> -- information about this version of the program</span></li>
</ul>
<h4>Dealing with the garbage collector:</h4>
<ul><li><span><a href="_collect__Garbage.html" title="collect the garbage in memory">collectGarbage</a> -- collect the garbage in memory</span></li>
</ul>
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