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