log: don't reopen /dev/console each time we call log_open()

[elogind.git] / man / systemd.exec.xml

diff --git a/man/systemd.exec.xml b/man/systemd.exec.xml
index ba4e808ddd2af6345bdfa7159176b23acaf181ca..207592dda70c7c42198d167b4a480edc4098b726 100644 (file)
--- a/man/systemd.exec.xml
+++ b/man/systemd.exec.xml
@@ -846,9 +846,9 @@
                                 system namespace for the executed
                                 processes and mounts private
                                 <filename>/tmp</filename> and
-                                <filename>/var/tmp</filename> directories
-                                inside it, that are not shared by
-                                processes outside of the
+                                <filename>/var/tmp</filename>
+                                directories inside it, that are not
+                                shared by processes outside of the
                                 namespace. This is useful to secure
                                 access to temporary files of the
                                 process, but makes sharing between
@@ -856,9 +856,17 @@
                                 <filename>/tmp</filename> or
                                 <filename>/var/tmp</filename>
                                 impossible. All temporary data created
-                                by service will be removed after service
-                                is stopped. Defaults to
-                                false.</para></listitem>
+                                by service will be removed after
+                                service is stopped. Defaults to
+                                false. Note that it is possible to run
+                                two or more units within the same
+                                private <filename>/tmp</filename> and
+                                <filename>/var/tmp</filename>
+                                namespace by using the
+                                <varname>JoinsNamespaceOf=</varname>
+                                directive, see
+                                <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+                                for details.</para></listitem>
                         </varlistentry>
 
                         <varlistentry>
@@ -874,8 +882,14 @@
                                 available to the executed process.
                                 This is useful to securely turn off
                                 network access by the executed
-                                process. Defaults to
-                                false.</para></listitem>
+                                process. Defaults to false. Note that
+                                it is possible to run two or more
+                                units within the same private network
+                                namespace by using the
+                                <varname>JoinsNamespaceOf=</varname>
+                                directive, see
+                                <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+                                for details.</para></listitem>
                         </varlistentry>
 
                         <varlistentry>
@@ -1021,10 +1035,13 @@
 
                         <varlistentry>
                                 <term><varname>$USER</varname></term>
+                                <term><varname>$LOGNAME</varname></term>
                                 <term><varname>$HOME</varname></term>
+                                <term><varname>$SHELL</varname></term>
 
-                                <listitem><para>User name and home
-                                directory.  Set for the units which
+                                <listitem><para>User name (twice), home
+                                directory, and the login shell.
+                                The variables are set for the units that
                                 have <varname>User=</varname> set,
                                 which includes user
                                 <command>systemd</command> instances.
@@ -1050,14 +1067,14 @@
                                 <term><varname>$XDG_VTNR</varname></term>
 
                                 <listitem><para>The identifier of the
-                                session, and the seat name, and
+                                session, the seat name, and
                                 virtual terminal of the session. Set
                                 by
                                 <citerefentry><refentrytitle>pam_systemd</refentrytitle><manvolnum>8</manvolnum></citerefentry>
                                 for login sessions.
                                 <varname>$XDG_SEAT</varname> and
-                                <varname>$XDG_VTNR</varname> will be
-                                only set when attached to a seat and a
+                                <varname>$XDG_VTNR</varname> will
+                                only be set when attached to a seat and a
                                 tty.</para></listitem>
                         </varlistentry>
 
@@ -1080,6 +1097,20 @@
                                 <citerefentry><refentrytitle>sd_listen_fds</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
                                 </para></listitem>
                         </varlistentry>
+
+                        <varlistentry>
+                                <term><varname>$TERM</varname></term>
+
+                                <listitem><para>Terminal type, set
+                                only for units connected to a terminal
+                                (<varname>StandardInput=tty</varname>,
+                                <varname>StandardOutput=tty</varname>,
+                                or
+                                <varname>StandardError=tty</varname>).
+                                See
+                                <citerefentry><refentrytitle>termcap</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
+                                </para></listitem>
+                        </varlistentry>
                 </variablelist>
 
                 <para>Additional variables may be configured by the
@@ -1108,7 +1139,7 @@
                           <citerefentry><refentrytitle>systemd.swap</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>systemd.mount</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
-                          <citerefentry><refentrytitle>systemd.cgroup</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+                          <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>exec</refentrytitle><manvolnum>3</manvolnum></citerefentry>
                   </para>