Query: colon
OS: suse
Section: 1p
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
COLON(1P) POSIX Programmer's Manual COLON(1P)PROLOGThis manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the correspond- ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.NAMEcolon - null utilitySYNOPSIS: [argument ...]DESCRIPTIONThis utility shall only expand command arguments. It is used when a command is needed, as in the then condition of an if command, but noth- ing is to be done by the command.OPTIONSNone.OPERANDSSee the DESCRIPTION.STDINNot used.INPUT FILESNone.ENVIRONMENT VARIABLESNone.ASYNCHRONOUS EVENTSDefault.STDOUTNot used.STDERRThe standard error shall be used only for diagnostic messages.OUTPUT FILESNone.EXTENDED DESCRIPTIONNone.EXIT STATUSZero.CONSEQUENCES OF ERRORSDefault. The following sections are informative.APPLICATION USAGENone.EXAMPLES: ${X=abc} if false then : else echo $X fi abc As with any of the special built-ins, the null utility can also have variable assignments and redirections associated with it, such as: x=y : > z which sets variable x to the value y (so that it persists after the null utility completes) and creates or truncates file z.RATIONALENone.FUTURE DIRECTIONSNone.SEE ALSOSpecial Built-In UtilitiesCOPYRIGHTPortions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol- ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .IEEE/The Open Group 2003 COLON(1P)
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