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| 18 | </style><a href="index.html">Index </a>· | |
| 19 | <a href="systemd.directives.html">Directives </a>· | |
| 20 | <a href="../python-systemd/index.html">Python </a>· | |
| 21 | <a href="../libudev/index.html">libudev </a>· | |
| 5eef597e | 22 | <a href="../libudev/index.html">gudev </a><span style="float:right">systemd 217</span><hr><div class="refentry"><a name="runlevel"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>runlevel — Print previous and current SysV runlevel</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="cmdsynopsis"><p><code class="command">runlevel [options...]</code> </p></div></div><div class="refsect1"><a name="idm214169516464"></a><h2 id="Description">Description<a class="headerlink" title="Permalink to this headline" href="#Description">¶</a></h2><p><span class="command"><strong>runlevel</strong></span> prints the previous |
| 663996b3 MS |
23 | and current SysV runlevel if they are known.</p><p>The two runlevel characters are separated by a |
| 24 | single space character. If a runlevel cannot be | |
| 25 | determined, N is printed instead. If neither can be | |
| 26 | determined, the word "unknown" is printed.</p><p>Unless overridden in the environment, this will | |
| 27 | check the utmp database for recent runlevel | |
| 5eef597e MP |
28 | changes.</p></div><div class="refsect1"><a name="idm214169513552"></a><h2 id="Options">Options<a class="headerlink" title="Permalink to this headline" href="#Options">¶</a></h2><p>The following option is understood:</p><div class="variablelist"><dl class="variablelist"><dt id="--help"><span class="term"><code class="option">--help</code></span><a class="headerlink" title="Permalink to this term" href="#--help">¶</a></dt><dd><p><a name="help-text"></a>Print a short help text and exit. |
| 29 | </p></dd></dl></div></div><div class="refsect1"><a name="idm214169510160"></a><h2 id="Exit status">Exit status<a class="headerlink" title="Permalink to this headline" href="#Exit%20status">¶</a></h2><p>If one or both runlevels could be determined, 0 | |
| 30 | is returned, a non-zero failure code otherwise.</p></div><div class="refsect1"><a name="idm214169508848"></a><h2 id="Environment">Environment<a class="headerlink" title="Permalink to this headline" href="#Environment">¶</a></h2><div class="variablelist"><dl class="variablelist"><dt id="$RUNLEVEL"><span class="term"><code class="varname">$RUNLEVEL</code></span><a class="headerlink" title="Permalink to this term" href="#%24RUNLEVEL">¶</a></dt><dd><p>If | |
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31 | <code class="varname">$RUNLEVEL</code> is set, |
| 32 | <span class="command"><strong>runlevel</strong></span> will print | |
| 33 | this value as current runlevel and | |
| 34 | ignore utmp.</p></dd><dt id="$PREVLEVEL"><span class="term"><code class="varname">$PREVLEVEL</code></span><a class="headerlink" title="Permalink to this term" href="#%24PREVLEVEL">¶</a></dt><dd><p>If | |
| 14228c0d | 35 | <code class="varname">$PREVLEVEL</code> is set, |
| 663996b3 MS |
36 | <span class="command"><strong>runlevel</strong></span> will print |
| 37 | this value as previous runlevel and | |
| 5eef597e | 38 | ignore utmp.</p></dd></dl></div></div><div class="refsect1"><a name="idm214173401872"></a><h2 id="Files">Files<a class="headerlink" title="Permalink to this headline" href="#Files">¶</a></h2><div class="variablelist"><dl class="variablelist"><dt id="/var/run/utmp"><span class="term"><code class="filename">/var/run/utmp</code></span><a class="headerlink" title="Permalink to this term" href="#/var/run/utmp">¶</a></dt><dd><p>The utmp database |
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39 | <span class="command"><strong>runlevel</strong></span> reads the |
| 40 | previous and current runlevel | |
| 5eef597e | 41 | from.</p></dd></dl></div></div><div class="refsect1"><a name="idm214173398160"></a><h2 id="Notes">Notes<a class="headerlink" title="Permalink to this headline" href="#Notes">¶</a></h2><p>This is a legacy command available for compatibility |
| 663996b3 | 42 | only. It should not be used anymore, as the concept of |
| 5eef597e | 43 | runlevels is obsolete.</p></div><div class="refsect1"><a name="idm214173396800"></a><h2 id="See Also">See Also<a class="headerlink" title="Permalink to this headline" href="#See%20Also">¶</a></h2><p> |
| 663996b3 MS |
44 | <a href="systemd.html"><span class="citerefentry"><span class="refentrytitle">systemd</span>(1)</span></a>, |
| 45 | <a href="systemctl.html"><span class="citerefentry"><span class="refentrytitle">systemctl</span>(1)</span></a> | |
| 46 | </p></div></div></body></html> |