On 7/27/05, Don Beusee wrote: > That's not good enough for scripting. First of all, the command is not so > simple (you have to grep -v grep also - so that the same script works on > Unix systems) and if you have small PID number like 14, that will likely > return lots of other processes (like 114, etc). Also, the same <PID> > appears in the PPID column if it has children. Some Unix variants might not > have a space in the ps output between the PID and previous or next column > when one of the column's data is larger than the specified printf format. > > So your command is not reliable enough for scripting and is also very slow > on large Unix systems with 1000's of processes running. ps -p <PID> is > immediate, reliable, and portable (it's SYSV/SVR4 standard).
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