Hello world/Line printer: Difference between revisions
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{{works with|QBasic}} |
{{works with|QBasic}} |
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{{works with|ZX Spectrum Basic}} |
{{works with|ZX Spectrum Basic}} |
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<lang qbasic>LPRINT "Hello World!"</lang> |
<lang qbasic>LPRINT "Hello World!"</lang> |
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=={{header|Batch File}}== |
=={{header|Batch File}}== |
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<lang dos>ECHO Hello world! |
<lang dos>ECHO Hello world!>PRN</lang> |
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=={{header|J}}== |
=={{header|J}}== |
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=={{header|Tcl}}== |
=={{header|Tcl}}== |
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On Unix only: |
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===[[Unix]]=== |
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<lang tcl>exec lp << "Hello World!"</lang> |
<lang tcl>exec lp << "Hello World!"</lang> |
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or |
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<lang tcl>set f [open |lp w] |
<lang tcl>set f [open |lp w] |
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puts $f "Hello World!" |
puts $f "Hello World!" |
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close $f</lang> |
close $f</lang> |
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On Windows only: |
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===[[Windows]]=== |
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<lang tcl>set f [open prn w] |
<lang tcl>set f [open prn w] |
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puts $f "Hello World!" |
puts $f "Hello World!" |
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{{works with|POSIX}} |
{{works with|POSIX}} |
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Alternately, there are the character devices <tt>/dev/lp0</tt>, <tt>/dev/lp1</tt>, <tt>/dev/lpN</tt> and so on which correspond to line printers (if there are any attached to the system). Data written to these devices is sent to attached printers. |
Alternately, there are the character devices <tt>/dev/lp0</tt>, <tt>/dev/lp1</tt>, <tt>/dev/lpN</tt> and so on which correspond to line printers (if there are any attached to the system). Data written to these devices is sent to attached printers. |
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<lang bash>echo 'Hello World' > /dev/lp0</lang> |
<lang bash>echo 'Hello World' > /dev/lp0</lang> |
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Revision as of 05:08, 5 October 2010
You are encouraged to solve this task according to the task description, using any language you may know.
Cause a line printer attached to the computer to print a line containing the message Hello World!
BASIC
<lang qbasic>LPRINT "Hello World!"</lang>
Batch File
<lang dos>ECHO Hello world!>PRN</lang>
J
<lang j>require'print' print'Hello world!'</lang>
PureBasic
<lang PureBasic>MyPrinter$ = LPRINT_GetDefaultPrinter() If LPRINT_OpenPrinter(MyPrinter$)
If LPRINT_StartDoc("Printing a RC-Task")
LPRINT_Print(Chr(27) + "E") ; PCL reset for HP Printers
LPRINT_PrintN("Hello World!")
LPRINT_NewPage()
LPRINT_EndDoc()
EndIf
LPRINT_ClosePrinter()
EndIf</lang>
Tcl
Unix
<lang tcl>exec lp << "Hello World!"</lang> <lang tcl>set f [open |lp w] puts $f "Hello World!" close $f</lang>
Windows
<lang tcl>set f [open prn w] puts $f "Hello World!" close $f</lang>
UNIX Shell
<lang bash>echo 'Hello World!'|lp</lang>
Alternately, there are the character devices /dev/lp0, /dev/lp1, /dev/lpN and so on which correspond to line printers (if there are any attached to the system). Data written to these devices is sent to attached printers.
<lang bash>echo 'Hello World' > /dev/lp0</lang>