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man: document that unit file globbing only operates on primary unit names

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See: #2397
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Lennart Poettering 2016-01-26 19:50:04 +01:00
parent 1b53f64b00
commit 1f00ededc7
1 changed files with 12 additions and 15 deletions
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27
man/systemctl.xml
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@ -683,14 +683,11 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
<para>Start (activate) one or more units specified on the
command line.</para>
<para>Note that glob patterns operate on a list of currently
loaded units. Units which are not active and are not in a
failed state usually are not loaded, and would not be
matched by any pattern. In addition, in case of
instantiated units, systemd is often unaware of the
instance name until the instance has been started. Therefore,
using glob patterns with <command>start</command>
has limited usefulness.</para>
<para>Note that glob patterns operate on the set of primary names of currently loaded units. Units which
are not active and are not in a failed state usually are not loaded, and will not be matched by any
pattern. In addition, in case of instantiated units, systemd is often unaware of the instance name until
the instance has been started. Therefore, using glob patterns with <command>start</command> has limited
usefulness. Also, secondary alias names of units are not considered.</para>
</listitem>
</varlistentry>
<varlistentry>
@ -1724,11 +1721,10 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
are equivalent to:
<programlisting># systemctl status dev-sda.device
# systemctl status home.mount</programlisting>
In the second case, shell-style globs will be matched against
currently loaded units; literal unit names, with or without
a suffix, will be treated as in the first case. This means that
literal unit names always refer to exactly one unit, but globs
may match zero units and this is not considered an error.</para>
In the second case, shell-style globs will be matched against the primary names of all currently loaded units;
literal unit names, with or without a suffix, will be treated as in the first case. This means that literal unit
names always refer to exactly one unit, but globs may match zero units and this is not considered an
error.</para>
<para>Glob patterns use
<citerefentry project='man-pages'><refentrytitle>fnmatch</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
@ -1736,11 +1732,12 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
<literal>*</literal>, <literal>?</literal>,
<literal>[]</literal> may be used. See
<citerefentry project='man-pages'><refentrytitle>glob</refentrytitle><manvolnum>7</manvolnum></citerefentry>
for more details. The patterns are matched against the names of
for more details. The patterns are matched against the primary names of
currently loaded units, and patterns which do not match anything
are silently skipped. For example:
<programlisting># systemctl stop sshd@*.service</programlisting>
will stop all <filename>sshd@.service</filename> instances.
will stop all <filename>sshd@.service</filename> instances. Note that alias names of units, and units that aren't
loaded are not considered for glob expansion.
</para>
<para>For unit file commands, the specified