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Making multi line output appear on one line

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# 1  
Old 10-07-2004
Making multi line output appear on one line
Basically I wanna take grep output,

EACH_OPTION_CHARGE: V033*, VMVM, 4.00, M
EACH_OPTION_CHARGE: V040*, VMVM, 4.00, M
EACH_OPTION_CHARGE: V042*, VMVM, 4.50, M
EACH_OPTION_CHARGE: V043*, VMVM, 5.00, M
EACH_OPTION_CHARGE: V050*, VMVM, 4.00, M
EACH_OPTION_CHARGE: V052*, VMVM, 4.50, M

and get the following.

V033,V040,V042,V043,V050,V052


Basically, I am familair enough with awk to strip everything else out other then what I need, but I dont know how to get it all on one line.... any help will be apprecialted!
# 2  
Old 10-07-2004
try:
Code:
grep 'EACH_OPTION' testfile | awk '
  {printf "%s, " ,substr($2,1,4)} END {printf "\n"}'

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