09-28-2018
For threads started in the Shell Programming and Scripting forum, it always helps if you tell us what operating system and shell you're using.
In what way is the pipeline using tail -f not working.
We have to assume that you now that tail -f will never end and will continue reading from /var/log/mail.info forever, and the greps following that in your pipeline will continue processing data from that file as new lines are written to that file until something external to your pipeline terminates one of the processes in your pipeline. If you don't want the pipeline to run forever waiting for additional data to be written into that file, you shouldn't be using tail's -f option.
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LEARN ABOUT CENTOS
glbindprogrampipeline
GLBINDPROGRAMPIPELIN(3G) OpenGL Manual GLBINDPROGRAMPIPELIN(3G)
NAME
glBindProgramPipeline - bind a program pipeline to the current context
C SPECIFICATION
void glBindProgramPipeline(GLuint pipeline);
PARAMETERS
pipeline
Specifies the name of the pipeline object to bind to the context.
DESCRIPTION
glBindProgramPipeline binds a program pipeline object to the current context. pipeline must be a name previously returned from a call to
glGenProgramPipelines(). If no program pipeline exists with name pipeline then a new pipeline object is created with that name and
initialized to the default state vector.
When a program pipeline object is bound using glBindProgramPipeline, any previous binding is broken and is replaced with a binding to the
specified pipeline object. If pipeline is zero, the previous binding is broken and is not replaced, leaving no pipeline object bound. If no
current program object has been established by glUseProgram(), the program objects used for each stage and for uniform updates are taken
from the bound program pipeline object, if any. If there is a current program object established by glUseProgram(), the bound program
pipeline object has no effect on rendering or uniform updates. When a bound program pipeline object is used for rendering, individual
shader executables are taken from its program objects.
ERRORS
GL_INVALID_OPERATION is generated if pipeline is not zero or a name previously returned from a call to glGenProgramPipelines() or if such a
name has been deleted by a call to glDeleteProgramPipelines().
SEE ALSO
glCreateShader(), glCreateProgram(), glCompileShader(), glLinkProgram(), glGenProgramPipelines(), glDeleteProgramPipelines(),
glIsProgramPipeline()
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/.
AUTHORS
opengl.org
opengl.org 06/10/2014 GLBINDPROGRAMPIPELIN(3G)