1 <samba:parameter name="print command"
5 xmlns:samba="http://samba.org/common">
7 <para>After a print job has finished spooling to
8 a service, this command will be used via a <command moreinfo="none">system()</command>
9 call to process the spool file. Typically the command specified will
10 submit the spool file to the host's printing subsystem, but there
11 is no requirement that this be the case. The server will not remove
12 the spool file, so whatever command you specify should remove the
13 spool file when it has been processed, otherwise you will need to
14 manually remove old spool files.</para>
16 <para>The print command is simply a text string. It will be used
17 verbatim after macro substitutions have been made:</para>
19 <para>%s, %f - the path to the spool
22 <para>%p - the appropriate printer
26 name as transmitted by the client.</para>
28 <para>%c - The number of printed pages
29 of the spooled job (if known).</para>
31 <para>%z - the size of the spooled
32 print job (in bytes)</para>
34 <para>The print command <emphasis>MUST</emphasis> contain at least
35 one occurrence of <parameter moreinfo="none">%s</parameter> or <parameter moreinfo="none">%f
36 </parameter> - the <parameter moreinfo="none">%p</parameter> is optional. At the time
37 a job is submitted, if no printer name is supplied the <parameter moreinfo="none">%p
38 </parameter> will be silently removed from the printer command.</para>
40 <para>If specified in the [global] section, the print command given
41 will be used for any printable service that does not have its own
42 print command specified.</para>
44 <para>If there is neither a specified print command for a
45 printable service nor a global print command, spool files will
46 be created but not processed and (most importantly) not removed.</para>
48 <para>Note that printing may fail on some UNIXes from the
49 <constant>nobody</constant> account. If this happens then create
50 an alternative guest account that can print and set the <link linkend="GUESTACCOUNT">
51 <parameter moreinfo="none">guest account</parameter></link>
52 in the [global] section.</para>
54 <para>You can form quite complex print commands by realizing
55 that they are just passed to a shell. For example the following
56 will log a print job, print the file, then remove it. Note that
57 ';' is the usual separator for command in shell scripts.</para>
59 <para><command moreinfo="none">print command = echo Printing %s >>
60 /tmp/print.log; lpr -P %p %s; rm %s</command></para>
62 <para>You may have to vary this command considerably depending
63 on how you normally print files on your system. The default for
64 the parameter varies depending on the setting of the <link linkend="PRINTING">
65 <parameter moreinfo="none">printing</parameter></link> parameter.</para>
67 <para>Default: For <command moreinfo="none">printing = BSD, AIX, QNX, LPRNG
68 or PLP :</command></para>
69 <para><command moreinfo="none">print command = lpr -r -P%p %s</command></para>
71 <para>For <command moreinfo="none">printing = SYSV or HPUX :</command></para>
72 <para><command moreinfo="none">print command = lp -c -d%p %s; rm %s</command></para>
74 <para>For <command moreinfo="none">printing = SOFTQ :</command></para>
75 <para><command moreinfo="none">print command = lp -d%p -s %s; rm %s</command></para>
77 <para>For printing = CUPS : If SAMBA is compiled against
78 libcups, then <link linkend="PRINTING">printcap = cups</link>
80 submit jobs, etc. Otherwise it maps to the System V
81 commands with the -oraw option for printing, i.e. it
82 uses <command moreinfo="none">lp -c -d%p -oraw; rm %s</command>.
83 With <command moreinfo="none">printing = cups</command>,
84 and if SAMBA is compiled against libcups, any manually
85 set print command will be ignored.</para>
88 <value type="example">/usr/local/samba/bin/myprintscript %p %s</value>