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Full Discussion: Remove the duplicate content in a file
Top Forums Shell Programming and Scripting Remove the duplicate content in a file Post 302843203 by ashokvpp on Monday 12th of August 2013 10:54:45 AM
Old 08-12-2013
Hi Scott,

So far I have collected uniq package names list.

Tried like:

Code:
$sed -n '/ChangeLog for: libblkid-2.17.2-12.9.el6_4.3.x86_64/,/Dependencies Resolved/p' centos6.txt 
ChangeLog for: libblkid-2.17.2-12.9.el6_4.3.x86_64,
             : libuuid-2.17.2-12.9.el6_4.3.x86_64,
             : util-linux-ng-2.17.2-12.9.el6_4.3.x86_64
* Tue Apr 23 12:00:00 2013 Karel Zak <kzak@redhat.com> 2.17.2-12.9.el6_4.3
- fix #917678 - mount in RHEL 6.4 ignores user option

* Tue Apr 16 12:00:00 2013 Karel Zak <kzak@redhat.com> 2.17.2-12.9.el6_4.2
- make patch for #911756 more robust

* Tue Apr 16 12:00:00 2013 Karel Zak <kzak@redhat.com> 2.17.2-12.9.el6_4.1
- fix patch for #911756 to make it usable on big-endian machines

* Wed Apr 10 12:00:00 2013 Karel Zak <kzak@redhat.com> 2.17.2-12.9.el6_4
- fix #911756 - Make silicon medley signature recognition more robust


Dependencies Resolved
ChangeLog for: libblkid-2.17.2-12.9.el6_4.3.x86_64,
             : libuuid-2.17.2-12.9.el6_4.3.x86_64,
             : util-linux-ng-2.17.2-12.9.el6_4.3.x86_64
* Tue Apr 23 12:00:00 2013 Karel Zak <kzak@redhat.com> 2.17.2-12.9.el6_4.3
- fix #917678 - mount in RHEL 6.4 ignores user option

* Tue Apr 16 12:00:00 2013 Karel Zak <kzak@redhat.com> 2.17.2-12.9.el6_4.2
- make patch for #911756 more robust

* Tue Apr 16 12:00:00 2013 Karel Zak <kzak@redhat.com> 2.17.2-12.9.el6_4.1
- fix patch for #911756 to make it usable on big-endian machines

* Wed Apr 10 12:00:00 2013 Karel Zak <kzak@redhat.com> 2.17.2-12.9.el6_4
- fix #911756 - Make silicon medley signature recognition more robust


Dependencies Resolved
ChangeLog for: libblkid-2.17.2-12.9.el6_4.3.x86_64,
             : libuuid-2.17.2-12.9.el6_4.3.x86_64,
             : util-linux-ng-2.17.2-12.9.el6_4.3.x86_64
* Tue Apr 23 12:00:00 2013 Karel Zak <kzak@redhat.com> 2.17.2-12.9.el6_4.3
- fix #917678 - mount in RHEL 6.4 ignores user option

* Tue Apr 16 12:00:00 2013 Karel Zak <kzak@redhat.com> 2.17.2-12.9.el6_4.2
- make patch for #911756 more robust

* Tue Apr 16 12:00:00 2013 Karel Zak <kzak@redhat.com> 2.17.2-12.9.el6_4.1
- fix patch for #911756 to make it usable on big-endian machines

* Wed Apr 10 12:00:00 2013 Karel Zak <kzak@redhat.com> 2.17.2-12.9.el6_4
- fix #911756 - Make silicon medley signature recognition more robust

I'm looking out to print only 1 occurrence of it.

Thanks
 

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LEARN ABOUT OPENDARWIN

switch_root

SWITCH_ROOT(8)						       System Administration						    SWITCH_ROOT(8)

NAME

       switch_root - switch to another filesystem as the root of the mount tree

SYNOPSIS

       switch_root [-hV]

       switch_root newroot init [arg...]

DESCRIPTION

       switch_root moves already mounted /proc, /dev, /sys and /run to newroot and makes newroot the new root filesystem and starts init process.

       WARNING: switch_root removes recursively all files and directories on the current root filesystem.

OPTIONS

       -h, --help
	      Display help text and exit.

       -V, --version
	      Display version information and exit.

RETURN VALUE

       switch_root returns 0 on success and 1 on failure.

NOTES

       switch_root  will  fail	to  function if newroot is not the root of a mount. If you want to switch root into a directory that does not meet
       this requirement then you can first use a bind-mounting trick to turn any directory into a mount point:

	      mount --bind $DIR $DIR

SEE ALSO

       chroot(2), init(8), mkinitrd(8), mount(8)

AUTHORS

       Peter Jones <pjones@redhat.com>
       Jeremy Katz <katzj@redhat.com>
       Karel Zak <kzak@redhat.com>

AVAILABILITY

       The switch_root command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/.

util-linux							     June 2009							    SWITCH_ROOT(8)
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