error in awk of shell script -

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i getting below error ith code.what missing in it? goal print 13.0.5.8 in $version

 #!/bin/ksh   file="abc_def_app_13.0.5.8"   if echo "$file" | grep -e "abc_def_app";         echo "version found: $file"      version1=(echo $file |  awk -f_ '{print $nf}' | cut -d. -f1-3)      version2=(echo $file | awk -f_ '{print $nf}' | cut -d. -f4-)      echo $version1      echo $version2          version=$version$version2          echo $version  else        echo "version not found"   fi

please find below error:

 ./version.sh: line 7: syntax error near unexpected token `|' ./version.sh: line 7: ` version1=(echo $file |  awk -f_ '{print $nf}' | cut -d. -f1-3)' ./version.sh: line 9: syntax error near unexpected token `|' ./version.sh: line 9: ` version2=(echo $file | awk -f_ '{print $nf}' | cut -d. -f4-)'    ./version.sh: line 18: syntax error near unexpected token `else'

it can done in single awk command , without additional cut command. consider following command:

read version1 version2 < <(echo $file|awk -f "[_.]" '{    printf("%s.%s.%s ", $4, $5, $6); printf("%s", $7);    (i=8; i<=nf; i++) printf(".%s", $i); print ""}')  echo "$version1 :: $version2"

output

13.0.5 :: 8

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