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Re: [shell-script] Script com comando Tar
From: |
Herbert Alexander Faleiros |
Subject: |
Re: [shell-script] Script com comando Tar |
Date: |
Sun, 9 Jul 2006 14:09:20 -0300 |
User-agent: |
KMail/1.9.3 |
On Sunday 09 July 2006 12:45, Herbert Alexander Faleiros wrote:
[cut]
> size=`du -s "$1" | awk '{print $1}'`
> disc=`expr 50 \* 1024`
>
> for i in `seq 0 $(expr $size / $disc)`; do
> vols=$vols$(echo -n "-f disc$(printf %03d $i).tar ")
> done
>
> tar -c $vols -M -L $disc "$1"
[cut]
A GPL é para garantir que não vá encontrar o script em algum lugar na net com
outro autor (acreditem, isso acontece).
Ah, só copiei/colei (o script/explicações) de um outro e-mail que escrevi no
início do ano em uma lista de Linux (não recordo qual foi).
Outra coisa, se não me engano (não tenho certeza) o tar aguenta até 68G e o
cpio 8G, talvez a limitação que citou seja do sistema de arquivos.
Melhorando um pouquinho o script (tornando-o funcional):
#!/bin/sh
#
# backup - tar with multi-volumes (files).
# Copyright (C) 2006 Herbert Alexander Faleiros
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# Herbert Alexander Faleiros aka ratmmmam <address@hidden>
#
# disc size
default=50
function create() {
size=`du -s "$1" | awk '{print $1}'`
disc=`expr $default \* 1024`
for i in `seq 0 $(expr $size / $disc)`; do
vols=$vols$(echo -n "-f disc$(printf %03d $i).tar ")
done
tar -P -c $vols -M -L $disc "$1"
}
function restore() {
for i in disc*; do
vols=$vols$(echo -n "-f $i ");
done;
tar -x $vols -M
}
case $1 in
create)
create $2
;;
restore)
restore
;;
*)
echo "Usage: $0 create|restore dir/file"
exit 1
;;
esac