Commenting existing line in a file and adding 3 new lines below the commented line in ksh shell

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The config file has the below line:



Ciphers aes128-ctr,aes192-ctr,aes256-ctr


So need to comment this line and add below lines after the commented line.



Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour
PubkeyAcceptedKeyTypes ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,ssh-rsa,ssh-dss
HostKeyAlgorithms ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ssh-ed25519,ssh-rsa,ssh-dss


The output should be in the below format.



#Ciphers aes128-ctr,aes192-ctr,aes256-ctr
Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour
PubkeyAcceptedKeyTypes ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,ssh-rsa,ssh-dss
HostKeyAlgorithms ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ssh-ed25519,ssh-rsa,ssh-dss





awk sed







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    up vote
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    down vote

    favorite












    The config file has the below line:



    Ciphers aes128-ctr,aes192-ctr,aes256-ctr


    So need to comment this line and add below lines after the commented line.



    Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour
    PubkeyAcceptedKeyTypes ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,ssh-rsa,ssh-dss
    HostKeyAlgorithms ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ssh-ed25519,ssh-rsa,ssh-dss


    The output should be in the below format.



    #Ciphers aes128-ctr,aes192-ctr,aes256-ctr
    Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour
    PubkeyAcceptedKeyTypes ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,ssh-rsa,ssh-dss
    HostKeyAlgorithms ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ssh-ed25519,ssh-rsa,ssh-dss





    awk sed







    share|improve this question

























      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      The config file has the below line:



      Ciphers aes128-ctr,aes192-ctr,aes256-ctr


      So need to comment this line and add below lines after the commented line.



      Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour
      PubkeyAcceptedKeyTypes ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,ssh-rsa,ssh-dss
      HostKeyAlgorithms ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ssh-ed25519,ssh-rsa,ssh-dss


      The output should be in the below format.



      #Ciphers aes128-ctr,aes192-ctr,aes256-ctr
      Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour
      PubkeyAcceptedKeyTypes ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,ssh-rsa,ssh-dss
      HostKeyAlgorithms ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ssh-ed25519,ssh-rsa,ssh-dss





      awk sed







      share|improve this question















      The config file has the below line:



      Ciphers aes128-ctr,aes192-ctr,aes256-ctr


      So need to comment this line and add below lines after the commented line.



      Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour
      PubkeyAcceptedKeyTypes ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,ssh-rsa,ssh-dss
      HostKeyAlgorithms ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ssh-ed25519,ssh-rsa,ssh-dss


      The output should be in the below format.



      #Ciphers aes128-ctr,aes192-ctr,aes256-ctr
      Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour
      PubkeyAcceptedKeyTypes ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,ssh-rsa,ssh-dss
      HostKeyAlgorithms ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ssh-ed25519,ssh-rsa,ssh-dss





      awk sed




      awk sed






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      share|improve this question













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      edited Aug 7 at 12:21









      msp9011

      3,46643862




      3,46643862










      asked Aug 7 at 10:17









      ikram

      61




      61




















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          Try



          sed '/Ciphers aes128-ctr,aes192-ctr,aes256-ctr/ s/^/#/; a
          Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128cbc,3des-cbc,blowfish-cbc,cast128- . . . 
          ' file





          share|improve this answer




















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            Try



            sed '/Ciphers aes128-ctr,aes192-ctr,aes256-ctr/ s/^/#/; a
            Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128cbc,3des-cbc,blowfish-cbc,cast128- . . . 
            ' file





            share|improve this answer
























              up vote
              1
              down vote













              Try



              sed '/Ciphers aes128-ctr,aes192-ctr,aes256-ctr/ s/^/#/; a
              Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128cbc,3des-cbc,blowfish-cbc,cast128- . . . 
              ' file





              share|improve this answer






















                up vote
                1
                down vote










                up vote
                1
                down vote









                Try



                sed '/Ciphers aes128-ctr,aes192-ctr,aes256-ctr/ s/^/#/; a
                Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128cbc,3des-cbc,blowfish-cbc,cast128- . . . 
                ' file





                share|improve this answer












                Try



                sed '/Ciphers aes128-ctr,aes192-ctr,aes256-ctr/ s/^/#/; a
                Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128cbc,3des-cbc,blowfish-cbc,cast128- . . . 
                ' file






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Aug 7 at 10:44









                RudiC

                1,1837




                1,1837



























                     

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