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Full Discussion: Removing multiple lines but not the next attribute
Top Forums Shell Programming and Scripting Removing multiple lines but not the next attribute Post 302502766 by Chubler_XL on Tuesday 8th of March 2011 10:51:09 PM
Old 03-08-2011
sed solution:
Code:
$ cat file1
publickey:ahdkhafdhfasdahfdhhasdfdsfadfdaybutbsfdfkl
ajdakjdafndnfkd;nfaksnaklsnfnfakfsldnan
sn:keepthisattribute
 
$ sed -n '/^publickey:/,/^sn:/{/^sn:/!b};p' file1
sn:keepthisattribute

Also, here are some solutions if publickey: and sn: don't always start at beginning of the line, eg:
Code:
before 
keyline publickey:ahdkhafdhfasdahfdhhasdfdsfadf
daybutbsfdfklajdak
jdafndnfkd;nfaksnaklsnfnfakfsldnansn:keepthisattribute and
the rest of
the doc

Awk solution:
Code:
awk '/publickey:/{j=1}j{o=o $0}/sn:/{sub(/publickey:.*sn:/,"sn:",o); $0=o; j=0} !j' infile

sed solution:
Code:
sed -n '/publickey:/!bo
:r
H;n
/sn:/!br
H;x
s/publickey:.*sn:/sn:/
s/^\n//
:o
p' infile

output:
Code:
before 
keyline sn:keepthisattribute and
the rest of
the doc

Last edited by Chubler_XL; 03-08-2011 at 11:58 PM..
 

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LEARN ABOUT X11R4

getpublickey

getpublickey(3NSL)                                     Networking Services Library Functions                                    getpublickey(3NSL)

NAME

       getpublickey, getsecretkey, publickey - retrieve public or secret key

SYNOPSIS

       #include <rpc/rpc.h>
       #include <rpc/key_prot.h>

       int getpublickey(const char netname[MAXNETNAMELEN], char publickey[HEXKEYBYTES+1]);

       int getsecretkey(const char netname[MAXNETNAMELEN], char secretkey[HEXKEYBYTES+1], const char *passwd);

DESCRIPTION

       getpublickey() and getsecretkey() get public and secret keys for netname. The key may come from one of the following sources:

         o  the /etc/publickey file. See publickey(4).

         o  the NIS map ``publickey.byname'' or the NIS+ table ``cred.org_dir''. The sources and their lookup order are specified in the /etc/nss-
            witch.conf file. See nsswitch.conf(4).

       getsecretkey() has an extra argument, passwd, which is used to decrypt the encrypted secret key stored in the database.

RETURN VALUES

       Both routines return 1 if they are successful in finding the key. Otherwise, the routines return 0. The keys are  returned  as  null-termi-
       nated,  hexadecimal  strings. If the password supplied to getsecretkey() fails to decrypt the secret key, the routine will return 1 but the
       secretkey [0] will be set to NULL.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |MT-Level                     |Safe                         |
       +-----------------------------+-----------------------------+

SEE ALSO

       secure_rpc(3NSL), nsswitch.conf(4), publickey(4), attributes(5)

WARNINGS

       If getpublickey() gets the public key from any source other than NIS+, all authenticated NIS+ operations may fail. To ensure that this does
       not happen, edit the nsswitch.conf(4) file to make sure that the public key is obtained from NIS+.

   NOTES
       NIS+  might  not  be  supported in future releases of the SolarisTM Operating Environment. Tools to aid the migration from NIS+ to LDAP are
       available in the Solaris 9 operating environment. For more information, visit http://www.sun.com/directory/nisplus/transition.html.

SunOS 5.10                                                          18 Dec 2001                                                 getpublickey(3NSL)
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