Need regexp help

Comments

• Bochi Member

  May 2019

  I have no idea about regex, but played around a bit just for shits and giggles. :P
  What about: ^(?:(?!(?=#)).)*$
  
  However, I guess this would need some heavy finetuning and an or to filter the empty lines...

  Thanked by 1Falzo
• donli Member

  May 2019

  @LTniger said:
  So, I came across interesting challenge, I need regexp to select everything (including match) after this:

  These days this is the job of sed, python (or something called perl that looks like random characters typed). Why do you specifically need a regexp?
• Janevski Member

  May 2019 edited May 2019

  $ cat /etc/resolv.conf 
  # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
  #     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
  nameserver 127.0.1.1
  $ sed -n '/OVERWRITTEN/,$p' /etc/resolv.conf | tail -n +2
  nameserver 127.0.1.1
  $ sed -n '/YOUR CHANGES/,$p' /etc/resolv.conf | tail -n +2
  nameserver 127.0.1.1
  $ 
  

  In your case:
  sed -n '/johantheghost at yahoo period com/,$p' /path/to/file.txt | tail -n +2

  PS: Or this.
  sed -n '/# # # # # # #/,$p' /path/to/file.txt
  Anyhow this is not a regex.
  Maybe i didn't understand well enough...
• Janevski Member

  May 2019

  Or this, but it is inferior potassium and needs more work:

  $ cat ~/Downloads/Mn1fynEM.sh | grep -Pzo '.*#    #  #    #  #  #    #(.*\n)*'
     #    #  #    #  #  #    #          #####   ######  #    #   ####   #    #
     #    #  ##   #  #   #  #           #    #  #       ##   #  #    #  #    #
     #    #  # #  #  #    ##            #####   #####   # #  #  #       ######
     #    #  #  # #  #    ##            #    #  #       #  # #  #       #    #
     #    #  #   ##  #   #  #           #    #  #       #   ##  #    #  #    #
      ####   #    #  #  #    #          #####   ######  #    #   ####   #    #
  
     Version 5.1.3                      Based on the Byte Magazine Unix Benchmark
  
     Multi-CPU version                  Version 5 revisions by Ian Smith,
                                        Sunnyvale, CA, USA
  $ echo "" >> ~/Downloads/Mn1fynEM.sh 
  $ cat ~/Downloads/Mn1fynEM.sh | grep -Pzo '.*#    #  #    #  #  #    #(.*\n)*'
     #    #  #    #  #  #    #          #####   ######  #    #   ####   #    #
     #    #  ##   #  #   #  #           #    #  #       ##   #  #    #  #    #
     #    #  # #  #  #    ##            #####   #####   # #  #  #       ######
     #    #  #  # #  #    ##            #    #  #       #  # #  #       #    #
     #    #  #   ##  #   #  #           #    #  #       #   ##  #    #  #    #
      ####   #    #  #  #    #          #####   ######  #    #   ####   #    #
  
     Version 5.1.3                      Based on the Byte Magazine Unix Benchmark
  
     Multi-CPU version                  Version 5 revisions by Ian Smith,
                                        Sunnyvale, CA, USA
     January 13, 2011                   johantheghost at yahoo period com
  $