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Full Discussion: Aix pid issue
Top Forums UNIX for Advanced & Expert Users Aix pid issue Post 302354085 by idana on Thursday 17th of September 2009 03:49:36 AM
Old 09-17-2009
Re

no way to fake the pid? what if i will open 4.5 million processes (from 40 different users)? will i eventually get a process with 4500000 pid?
 

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pid(3tcl)						       Tcl Built-In Commands							 pid(3tcl)

__________________________________________________________________________________________________________________________________________________

NAME
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(3tcl), open(3tcl) KEYWORDS
file, pipeline, process identifier Tcl 7.0 pid(3tcl)
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