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Full Discussion: advanced awk
Top Forums Shell Programming and Scripting advanced awk Post 302409285 by alister on Wednesday 31st of March 2010 02:49:12 PM
Old 03-31-2010
Code:
$ u=user1
$ sed -n '/^group/h; /'"$u"'/{g;s/[[:blank:]].*$//;p;}' file
group1
group2

I would recommend against using this type of solution unless you can guarantee that the user name will not contain any sed regular expression special characters ("/", ".", "*", "\" .. come immediately to mind).

You have been warned Smilie

Alister
Last edited by alister; 03-31-2010 at 04:21 PM..
 

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LEARN ABOUT SUSE

squid_unix_group

squid_unix_group(8)					      System Manager's Manual					       squid_unix_group(8)

NAME

       squid_unix_group - Squid UNIX Group external_acl helper

SYNOPSIS

       squid_unix_group [-g groupname] [-g groupname...] [-p] [-s]

DESCRIPTION

       This helper allows Squid to base access controls on users memberships in UNIX groups.

       -g groupname
	      Specifies a group name to match.

       -p     Also match the users primary group from /etc/passwd

       -s     Strip NT domain name component from user names (/ or  separated)

EXAMPLES

       This squid.conf example defines two Squid acls. usergroup1 matches users in group1, and usergroup2 matches users in group2 or group3

	      external_acl_type unix_group %LOGIN /usr/local/squid/libexec/squid_unix_group -p

	      acl usergroup1 external unix_group group1

	      acl usergroup2 external unix_group group2 group3

NOTES

       By  default  up to 11 groups can be matched in one acl (including commandline specified groups). This limit is defined by MAX_GROUPS in the
       source code.

AUTHOR

       This manual page was written by Henrik Nordstrom <hno@squid-cache.org>

       squid_unix_group is written by Rodrigo Campos <rodrigo@geekbunker.org>

KNOWN ISSUES

       Does not understand gid aliased groups sometimes used to work around groups size limitations. If you are using gid aliased groups then  you
       must specify each alias by name.

QUESTIONS

       Any questions on usage can be sent to Squid Users <squid-users@squid-cache.org>

REPORTING BUGS

       Report bugs or bug-fixes to Rodrigo Campos <rodrigo@geekbunker.org> or Squid Developers <squid-dev@squid-cache.org>

SEE ALSO

       group(5),passwd(5)

Squid UNIX Group helper 					  12 August 2002					       squid_unix_group(8)
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