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Operating Systems OS X (Apple) What's the reason behind having -n option for mv command? Post 302967798 by scrutinizerix on Sunday 28th of February 2016 11:55:58 AM
Old 02-28-2016
What's the reason behind having -n option for mv command?

Sorry for a question that may seem dumb but learning UNIX basics I still can not grasp benefits of using
Code:
mv -n source file target file

I can understand the need for
Code:
 cp -n source file target file

when you get a copy with contents untouched but the former baffles me.
I know that this about preventing from overwriting a target file with contents of a source file (not in opposite order, right?) but why rename at all if you don't want to annihilate the target file? What's the point?

Would be glad to feel enlightened on the subject.

Last edited by scrutinizerix; 02-29-2016 at 02:03 PM..
 

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GLBINDFRAMEBUFFER(3G)						  [FIXME: manual]					     GLBINDFRAMEBUFFER(3G)

NAME
glBindFramebuffer - bind a framebuffer to a framebuffer target C SPECIFICATION
void glBindFramebuffer(GLenum target, GLuint framebuffer); PARAMETERS
target Specifies the framebuffer target of the binding operation. framebuffer Specifies the name of the framebuffer object to bind. DESCRIPTION
glBindFramebuffer binds the framebuffer object with name framebuffer to the framebuffer target specified by target. target must be either GL_DRAW_FRAMEBUFFER, GL_READ_FRAMEBUFFER or GL_FRAMEBUFFER. If a framebuffer object is bound to GL_DRAW_FRAMEBUFFER or GL_READ_FRAMEBUFFER, it becomes the target for rendering or readback operations, respectively, until it is deleted or another framebuffer is bound to the corresponding bind point. Calling glBindFramebuffer with target set to GL_FRAMEBUFFER binds framebuffer to both the read and draw framebuffer targets. framebuffer is the name of a framebuffer object previously returned from a call to glGenFramebuffers(), or zero to break the existing binding of a framebuffer object to target. ERRORS
GL_INVALID_ENUM is generated if target is not GL_DRAW_FRAMEBUFFER, GL_READ_FRAMEBUFFER or GL_FRAMEBUFFER. GL_INVALID_OPERATION is generated if framebuffer is not zero or the name of a framebuffer previously returned from a call to glGenFramebuffers(). SEE ALSO
glGenFramebuffers(), glDeleteFramebuffers(), glFramebufferRenderbuffer(), glFramebufferTexture(), glFramebufferTexture1D(), glFramebufferTexture2D(), glFramebufferTexture3D(), glFramebufferTextureFace(), glFramebufferTextureLayer(), glIsFramebuffer() COPYRIGHT
Copyright (C) 2010 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/. [FIXME: source] 05/30/2012 GLBINDFRAMEBUFFER(3G)
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