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Commitcf78eb4

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Fix examples of how to use "su" while starting the server.
The syntax "su -c 'command' username" is not accepted by all versions ofsu, for example not OpenBSD's. More portable is "su username -c'command'". So change runtime.sgml to recommend that syntax. Also,add a -D switch to the OpenBSD example script, for consistency with otherexamples. Per Denis Lapshin and Gábor Hidvégi.
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‎doc/src/sgml/runtime.sgml

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@@ -280,10 +280,10 @@ pg_ctl start -l logfile
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<filename>rc.d</> directories. Whatever you do, the server must be
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run by the <productname>PostgreSQL</productname> user account
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<emphasis>and not by root</emphasis> or any other user. Therefore you
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probably should form your commands using <literal>su -c '...'
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postgres</literal>. For example:
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probably should form your commands using
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<literal>supostgres -c '...'</literal>. For example:
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<programlisting>
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su -c 'pg_ctl start -D /usr/local/pgsql/data -l serverlog' postgres
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supostgres-c 'pg_ctl start -D /usr/local/pgsql/data -l serverlog'
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</programlisting>
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</para>
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@@ -309,7 +309,7 @@ su -c 'pg_ctl start -D /usr/local/pgsql/data -l serverlog' postgres
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<indexterm><primary>OpenBSD</><secondary>start script</secondary></>
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<programlisting>
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if [ -x /usr/local/pgsql/bin/pg_ctl -a -x /usr/local/pgsql/bin/postgres ]; then
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su --c '/usr/local/pgsql/bin/pg_ctl start -l /var/postgresql/log -s' postgres
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su -l postgres-c '/usr/local/pgsql/bin/pg_ctl start -s -l /var/postgresql/log -D /usr/local/pgsql/data'
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echo -n ' postgresql'
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fi
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</programlisting>

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