From: "Peña, Botp" <botp@...>
Date: 2007-07-11T13:58:01+09:00
Subject: Re: Help: Efficient regular expression

From: Peña, Botp [mailto:botp@delmonte-phil.com] 
# On Behalf Of Divya Badrinath:
# # string = "root     14051 14033  3 08:39 pts/2    00:00:00  
# /bin/bash -x  -s"
# # it fetches only -s for me.
# # sec, last =  string.split.values_at(1, -1)
# # doesnt work for the same reason
# # i need everything after 00.00.00 till the end
# # i.e., /bin/bash -x -s
# 
# you can modify the non-regex solutions since they are just 
# plain array manipulations
# 
# irb(main):003:0> str = "root     14051 14033  3 08:39 pts/2   
#  00:00:00 /bin/bas
# h -x -s"
# => "root     14051 14033  3 08:39 pts/2    00:00:00 /bin/bash -x -s"
# irb(main):006:0> astr = str.split
# => ["root", "14051", "14033", "3", "08:39", "pts/2", 
# "00:00:00", "/bin/bash", "-
# x", "-s"]
# irb(main):007:0> pid = astr[1]
# => "14051"
# irb(main):010:0> cmd = astr[7..-1].join " "
# => "/bin/bash -x -s"
# 
# or
# 
# irb(main):024:0> pid,*cmd = astr.values_at(1,7..-1)
# => ["14051", "/bin/bash", "-x", "-s"]
# irb(main):025:0> pid
# => "14051"
# irb(main):026:0> cmd
# => ["/bin/bash", "-x", "-s"]
# irb(main):027:0> cmd = cmd.join " "
# => "/bin/bash -x -s"

i forgot to add the last one; it's niftier, so i would not want you to miss it.

irb(main):060:0> pid,cmd=str.split(" ",8).values_at(1,7)
=> ["14051", "/bin/bash -x -s"]
irb(main):061:0> pid
=> "14051"
irb(main):062:0> cmd
=> "/bin/bash -x -s"

i totally forgot about the second param of split. ruby is cool, indeed :)
kind regards -botp