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<samba:parameter name="print command"
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xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
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<para>After a print job has finished spooling to
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a service, this command will be used via a <command moreinfo="none">system()</command>
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call to process the spool file. Typically the command specified will
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submit the spool file to the host's printing subsystem, but there
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is no requirement that this be the case. The server will not remove
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the spool file, so whatever command you specify should remove the
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spool file when it has been processed, otherwise you will need to
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manually remove old spool files.</para>
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<para>The print command is simply a text string. It will be used
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verbatim after macro substitutions have been made:</para>
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<para>%s, %f - the path to the spool
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<para>%p - the appropriate printer
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name as transmitted by the client.</para>
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<para>%c - The number of printed pages
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of the spooled job (if known).</para>
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<para>%z - the size of the spooled
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print job (in bytes)</para>
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<para>The print command <emphasis>MUST</emphasis> contain at least
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one occurrence of <parameter moreinfo="none">%s</parameter> or <parameter moreinfo="none">%f
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</parameter> - the <parameter moreinfo="none">%p</parameter> is optional. At the time
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a job is submitted, if no printer name is supplied the <parameter moreinfo="none">%p
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</parameter> will be silently removed from the printer command.</para>
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<para>If specified in the [global] section, the print command given
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will be used for any printable service that does not have its own
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print command specified.</para>
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<para>If there is neither a specified print command for a
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printable service nor a global print command, spool files will
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be created but not processed and (most importantly) not removed.</para>
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<para>Note that printing may fail on some UNIXes from the
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<constant>nobody</constant> account. If this happens then create
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an alternative guest account that can print and set the <smbconfoption name="guest account"/>
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in the [global] section.</para>
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<para>You can form quite complex print commands by realizing
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that they are just passed to a shell. For example the following
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will log a print job, print the file, then remove it. Note that
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';' is the usual separator for command in shell scripts.</para>
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<para><command moreinfo="none">print command = echo Printing %s >>
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/tmp/print.log; lpr -P %p %s; rm %s</command></para>
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<para>You may have to vary this command considerably depending
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on how you normally print files on your system. The default for
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the parameter varies depending on the setting of the <smbconfoption name="printing"/>
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<para>Default: For <command moreinfo="none">printing = BSD, AIX, QNX, LPRNG
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or PLP :</command></para>
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<para><command moreinfo="none">print command = lpr -r -P%p %s</command></para>
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<para>For <command moreinfo="none">printing = SYSV or HPUX :</command></para>
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<para><command moreinfo="none">print command = lp -c -d%p %s; rm %s</command></para>
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<para>For <command moreinfo="none">printing = SOFTQ :</command></para>
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<para><command moreinfo="none">print command = lp -d%p -s %s; rm %s</command></para>
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<para>For printing = CUPS : If SAMBA is compiled against
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libcups, then <smbconfoption name="printcap">cups</smbconfoption>
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submit jobs, etc. Otherwise it maps to the System V
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commands with the -oraw option for printing, i.e. it
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uses <command moreinfo="none">lp -c -d%p -oraw; rm %s</command>.
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With <command moreinfo="none">printing = cups</command>,
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and if SAMBA is compiled against libcups, any manually
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set print command will be ignored.</para>
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<value type="example">/usr/local/samba/bin/myprintscript %p %s</value>