Shell Programming and Scripting

Hi

can some one please help me how i can get the output i require:

My text file "sample.txt" contains the text like below

Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_fedora-lv_root
15G 2.6G 12G 19% /hari
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_fedora-lv_root
15G 2.6G 12G 19% /abc

Now if i do ---- grep hari sample.txt it returns me --- 15G 2.6G 12G 19% /hari

what parameters should i use to get only the 15G (Infact the size only )

Code:

awk '/hari/ {print $1}' sample.txt

no it did not work,here is what i am trying ---- to get the available size of the folder

df -h /abc/123

this will return me the FILESYSTEM SIZE USED AVAILABLE and ....

all i want to get is the SIZE value

Code:

du -sh /abc/123 | awk '{print $1}'