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IRIX Base Documentation 1998 November
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IRIX 6.5.2 Base Documentation November 1998.img
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catman
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Tcl
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unknown.z
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Text File
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1998-10-30
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2KB
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67 lines
uuuunnnnkkkknnnnoooowwwwnnnn((((3333TTTTccccllll)))) uuuunnnnkkkknnnnoooowwwwnnnn((((3333TTTTccccllll))))
NNNNAAAAMMMMEEEE
unknown - Handle attempts to use non-existent commands
SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
uuuunnnnkkkknnnnoooowwwwnnnn _c_m_d_N_a_m_e ?_a_r_g _a_r_g ...?
DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
This command doesn't actually exist as part of Tcl, but Tcl will invoke
it if it does exist. If the Tcl interpreter encounters a command name
for which there is not a defined command, then Tcl checks for the
existence of a command named uuuunnnnkkkknnnnoooowwwwnnnn. If there is no such command, then
the interpreter returns an error. If the uuuunnnnkkkknnnnoooowwwwnnnn command exists, then it
is invoked with arguments consisting of the fully-substituted name and
arguments for the original non-existent command. The uuuunnnnkkkknnnnoooowwwwnnnn command
typically does things like searching through library directories for a
command procedure with the name _c_m_d_N_a_m_e, or expanding abbreviated command
names to full-length, or automatically executing unknown commands as
sub-processes. In some cases (such as expanding abbreviations) uuuunnnnkkkknnnnoooowwwwnnnn
will change the original command slightly and then (re-)execute it. The
result of the uuuunnnnkkkknnnnoooowwwwnnnn command is used as the result for the original
non-existent command.
KKKKEEEEYYYYWWWWOOOORRRRDDDDSSSS
error, non-existent command
PPPPaaaaggggeeee 1111