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                        at July 26, 2010 16:55 by mprabhuram
                            
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#take backup                                                                                                                                      
    NOW=$(date +"%b-%d-%y%H:%M")
    BKPFILE="hadoop-env-$NOW.sh"
    echo $BKPFILE
    cp hadoop-env.sh "$BKPFILE"
                                Initial URL
http://www.cyberciti.biz/tips/shell-scripting-creating-reportlog-file-names-with-date-in-filename.html
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Add date and time to filename
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Bash