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Full Discussion: Repeative Output
Top Forums Shell Programming and Scripting Repeative Output Post 302762083 by CiCa on Monday 28th of January 2013 04:37:20 AM
Old 01-28-2013
Repeative Output
Folks,

Not got much scritping experience, so I expect this will be a fairly trivial fix for those that know what they're doing...

I've got two files:

Code:
root[my-box]# cat /tmp/exemption_list
# This file will contain comments

# and blank lines.

aaa.bbb.ccc.000
aaa.bbb.ccc.222
aaa.bbb.ccc.444
aaa.bbb.ccc.666
root[my-box]#

Code:
root[my-box]# cat /tmp/subnet_list
aaa.bbb.ccc.000
aaa.bbb.ccc.111
aaa.bbb.ccc.222
aaa.bbb.ccc.333
aaa.bbb.ccc.444
aaa.bbb.ccc.555
aaa.bbb.ccc.666
aaa.bbb.ccc.777
aaa.bbb.ccc.888
aaa.bbb.ccc.999
root[my-box]#


What I'm trying to do, is run through the subnet_list and pick out and remove all of the matching addresses that exist in the exemption list and then write the amended list back to subnet_list - so essentially I'll end up with a list of subnets minus the exempt ones. Exemption list is something that will be ever changing, as a result I can't hard code it into the script.

The closest I've been able to get is:
Code:
root[my-box]# egrep -v "#|^$" /tmp/exemption_list| while read line; do grep -v $line /tmp/subnet_list >> /tmp/subnet_list_result; done
root[my-box]# mv /tmp/subnet_list_result /tmp/subnet_list

Which isn't quite right at all...

Can anyone help tweak the egrep command so I end up with a subnet_list file containing no exempt addresses and no duplicates?

Thanks in advance.
CiCa
Last edited by CiCa; 01-28-2013 at 05:49 AM.. Reason: Inserting code tags
 

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LEARN ABOUT OPENSOLARIS

acl_trivial

acl_trivial(3SEC)				       File Access Control Library Functions					 acl_trivial(3SEC)

NAME

       acl_trivial - determine whether a file has a trivial ACL

SYNOPSIS

       cc [ flag... ] file... -lsec [ library... ]
       #include <sys/acl.h>

       int acl_trivial(char *path);

DESCRIPTION

       The acl_trivial() function is used to determine whether a file has a trivial ACL. Whether an ACL is trivial depends on the type of the ACL.
       A POSIX draft ACL is trivial if it has greater than MIN_ACL_ENTRIES. An NFSv4/ZFS-style ACL is trivial if it either has entries other  than
       owner@, group@, and everyone@, has inheritance flags set, or is not ordered in a manner that meets POSIX access control requirements.

RETURN VALUES

       Upon successful completion, acl_trivial() returns 0 if the file's ACL is trivial and 1 if the file's ACL is not trivial. If it could not be
       determined whether a file's ACL is trivial, -1 is returned and errno is set to indicate the error.

ERRORS

       The acl_trivial() function will fail if:

       EACCES	 A file's ACL could not be read.

       ENOENT	 A component of path does not name an existing file or path is an empty string.

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       acl(5), attributes(5)

SunOS 5.11							    6 Oct 2005							 acl_trivial(3SEC)
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