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File backup simplified practical approach!

cp -p /etc/passwd{,.`date +%Y%m%d`}
#This will create copy on the same location with .<date> at the end

# another example
cp -p /etc/security/access.conf{,.`date +%Y%m%d`}

Using -p to preserve file attributes, such as permission and timestamp

Oct 25, 2015 by | 16 views
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