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pid(2) [osx man page]

pid(n)							       Tcl Built-In Commands							    pid(n)


pid - Retrieve process identifiers SYNOPSIS
pid ?fileId? _________________________________________________________________ DESCRIPTION
If the fileId argument is given then it should normally refer to a process pipeline created with the open command. In this case the pid command will return a list whose elements are the process identifiers of all the processes in the pipeline, in order. The list will be empty if fileId refers to an open file that is not a process pipeline. If no fileId argument is given then pid returns the process identi- fier of the current process. All process identifiers are returned as decimal strings. EXAMPLE
Print process information about the processes in a pipeline using the SysV ps program before reading the output of that pipeline: set pipeline [open "| zcat somefile.gz | grep foobar | sort -u"] # Print process information exec ps -fp [pid $pipeline] >@stdout # Print a separator and then the output of the pipeline puts [string repeat - 70] puts [read $pipeline] close $pipeline SEE ALSO
exec(n), open(n) KEYWORDS
file, pipeline, process identifier Tcl 7.0 pid(n)

Check Out this Related Man Page


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. [FIXME: source] 05/30/2012 GLBINDPROGRAMPIPELIN(3G)
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