awk user defined variable help

[pb0y]

X=some number

cat tmpfile | awk '$13~/"$X"/{print $0}'

what i want to do is to take a user defined variable and match it to field $13 in a text file. If the match is true then print the entire line. However, I don't seem to have the syntax correct for awk to understand $X is a variable. I have tried it also as:

cat tmpfile | awk '$13~/"'$X'"/{print $0}'
cat tmpfile | awk '$13~/\$X\/{print $0}'
cat tmpfile | awk '$13~/"${X}"/{print $0}'
cat tmpfile | awk -v X=$(X) '$13~/"$X"/{print $0}'

 

[vgersh99]

cat tmpfile | awk -v awkX=${X} '$13 ~ awkX {print $0}'

 

[pb0y]

Thanks for your suggestion, however it seems there is a typo? I get

awk: syntax error near line 1
awk: bailing out near line 1

 

[vgersh99]

If on SUN,

cat tmpfile | nawk -v awkX=${X} '$13 ~ awkX {print $0}'

 

[pb0y]

The variable declaration is working. The argument does not.

X=1234
cat tmpfile | awk -v awkX=${X} '$13 ~ awkX {print $0}'
+ cat tmpfile
+ awk -v awkX=1234 $13 ~ awkX {print $0}
awk: syntax error near line 1
awk: bailing out near line 1

 

[pb0y]

nawk worked thanks!