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print variable in file using awk

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# 1  
Old 01-03-2008
print variable in file using awk


i have store variable in $var i want to print it in $3 of file using awk.
how can i do it?

file :


i want to print $var in $3 ( for example var3 or var7 or var10)

# 2  
Old 01-03-2008
I hope you need this only

awk -F',' -v avar=$var '{printf("%s,%s,%s\n",$1,$2,avar);}' file
# 3  
Old 01-03-2008
$ cat file

$ awk -F, '{print $3}' file

is this what you wanted?
# 4  
Old 01-03-2008
Is this you need?

awk -F',' -v avar=$var '{print $avar}' file

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