Shell Programming and Scripting

bag  12   12 
bag  18   15 
bags  15   13 
bags  15   14 
blazer  24   24 
blazer  33   32 
boots  19   15

bag 30 27
bags 30 27
blazer 57 56
boots 19 15

awk '{a[$1]+=$2;b[$1]+=$3}END{for (i in a) print i,a[i],b[i]}' file

$
$ cat f60
bag 12 12
bag 18 15
bags 15 13
bags 15 14
blazer 24 24
blazer 33 32
boots 19 15
$
$ perl -lane '$i=0; map{$x{$F[0]}->[$i++]+=$_} @F[1,2]}{for (sort keys %x){print "$_ @{$x{$_}}"}' f60
bag 30 27
bags 30 27
blazer 57 56
boots 19 15
$
$

awk 'p!=$1{if(p)print p,s,t;s=t=x;p=$1}{s+=$2;t+=$3}END{print p,s,t}' infile

sort infile | awk 'p!=$1{if(p)print p,s,t;s=t=x;p=$1}{s+=$2;t+=$3}END{print p,s,t}'

sed 's/  */ /g' file_many_spaced >file_single_spaced

tr -s ' ' <file_many_spaced >file_single_spaced