From: "Peña, Botp" <botp@...>
Date: 2007-07-11T13:19:04+09:00
Subject: Re: Help: Efficient regular expression

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"