Unix and Linux Tips

Rabu, 14 Desember 2011

Unix Tip: BACKING UP FILES

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 3596 - December 14, 2011

http://www.ugu.com/sui/ugu/show?tip.today

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BACKING UP FILES

Ever needed to backup all
of your configuration files
in one fail swoop?

Using an editor create a
file:

vi configlist

Enter the full path of the
files needed to backup.

/etc/passwd
/etc/inetd.conf
/etc/hosts/allow
/etc/hosts.deny
and so on until you have a full list of files.
Save the file and quit

:wq!

Compress the files using tar:

tar cvfzT /tmp/backup.tar.gz configlist
tar: Removing leading `/` from absolute path names in the archive
etc/passwd
etc/inetd.conf

WARNING! This file contains some files that could only be read by a
limited number of users. Store it carefully so only the Administrator can
access it.

Check "man tar" on your flavor,
the "z" and "T" options are
not available on all flavors
of unix.

This tip generously supported by: darren.mallett@tradermedia.co.uk

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Selasa, 13 Desember 2011

Unix Tip: SNEAK THE EDUCATION IN

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 3595 - December 13, 2011

http://www.ugu.com/sui/ugu/show?tip.today

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SNEAK THE EDUCATION IN

During these times of tight
budgets. It is hard to
convince the boss to pay for
a class or conference. When
being quoted for a new
system ask the vendor to
toss in some education
classes into the price of
the quote.

There are 2 benefits to this:

1) Education in most
IT organizations comes out of
a different budget so you
are saving the company money
since that you don't need to
use the funds from that pool
of money.

2) If you need to negotiate
the price of the quote or tell
the vendor you are taking it
to bid against a competitor;
educational classes are like
dessert at a restaurant. They
sometimes can toss it in for
free to keep your business.

But either way, the goal is
to get the classes on the
quote!

Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
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Senin, 12 Desember 2011

Unix Tip: MANIPULATE MULTIPLE FILES

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 3594 - December 12, 2011

http://www.ugu.com/sui/ugu/show?tip.today

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MANIPULATE MULTIPLE FILES

If you have a directory with
large number of files and you
want to rename or copy or
process it, here is a simple
way to do it;

# for temp in *
> do
> echo cp $temp $temp.org >> t.txt
> done

You can change the copy command
to what ever that you need to
do. This will create a file
tmp.txt with all the files
listed in the current working
directory and insert a line
into the file tmp.txt as;

cp filename filename.org

This tip generously supported by: tyl@computer.org

Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
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Minggu, 11 Desember 2011

Unix Tip: UNDO HP SECURE PASSWORD FACILITY

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 3593 - December 11, 2011

http://www.ugu.com/sui/ugu/show?tip.today

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UNDO HP SECURE PASSWORD FACILITY

If you have run command
pwconv to convert to secure
password and later want to undo
it, here it how;

/etc/tsconvert -r

This only for HP Unix and no
man pages for this.

This tip generously supported by: tyl@computer.org

Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
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Sabtu, 10 Desember 2011

Unix Tip: COMMENT OUT MULTIPLE LINES

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 3592 - December 10, 2011

http://www.ugu.com/sui/ugu/show?tip.today

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COMMENT OUT MULTIPLE LINES

Ever wanted to comment out
multiple lines of code while
writing shell
scripts in vi, but didn't want
to pound your keyboard for half
an hour doing it?

(I#Escape j.j.j.j. = carpal tunnel)

Here's the nerdy way to do it:

:.,+N-1 s/^/#/g

Where N-1 is the number of lines
minus one that you want to comment
out, and s/^/#/g is the regular
expression (the pattern between the
first two slashes is what you want
to replace, in this case the
beginning of the line, and the
pattern between the last two slashes
is what you want to replace it with).

For example, if you're a bad
coder like me and want to comment
out 500 lines of code, you would do:

:.,+499 s/^/#/g

This tip generously supported by: maddox@xmission.com

Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
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