AWK - Avoid exponential value

Shell Programming and Scripting
1

I'm using the following command, but how can I avoid printing exponential value (highlighted):-

awk ' BEGIN  { OFS=FS="|" } { if(NF>4) $10=int(((3.77*$11)/100 + $11)); } { print } ' infile

CR|20121022|105|GSM|N|SAN|00122|SAN|75082|6.03929e+06|5819880|5794769|25111
CR|20121022|105|GSM|N|SAN|00122|SAN|75118|2613|2519|2514|5
CR|20121022|105|GSM|N|SAN|00122|SAN|75119|157324|151609|151455|154
CR|20121022|105|GSM|N|SAN|30204|SAN|75082|95919|92435|91479|956
CR|20121022|105|GSM|N|SAN|30204|SAN|75118|894|862|835|27
CR|20121022|105|GSM|N|SAN|30204|SAN|75119|5132|4946|4901|45
CR|20121022|105|GSM|N|SAN|30214|SAN|75082|20167|19435|19434|1
CR|20121022|105|GSM|N|SAN|30214|SAN|75118|639|616|616|0
CR|20121022|105|GSM|N|SAN|30214|SAN|75119|4860|4684|4658|26
CR|20121022|105|GSM|N|SAN|30282|SAN|75082|17462|16828|16821|7
CR|20121022|105|GSM|N|SAN|30282|SAN|75118|1607|1549|1548|1
CR|20121022|105|GSM|N|SAN|30282|SAN|75119|87245|84076|83910|166
2

try:

awk ' BEGIN  { OFS=FS="|" } $10 !~ /[+]/ { if(NF>4) $10=int(((3.77*$11)/100 + $11)); print } ' infile
3

@rdrtx1 I'm sorry it is not working, still printing the exponential value. Can you recheck please?

4

infile:

CR|20121022|105|GSM|N|SAN|00122|SAN|75082|6.03929e+06|5819880|5794769|25111
CR|20121022|105|GSM|N|SAN|00122|SAN|75118|2613|2519|2514|5
CR|20121022|105|GSM|N|SAN|00122|SAN|75119|157324|151609|151455|154
CR|20121022|105|GSM|N|SAN|30204|SAN|75082|95919|92435|91479|956
CR|20121022|105|GSM|N|SAN|30204|SAN|75118|894|862|835|27
CR|20121022|105|GSM|N|SAN|30204|SAN|75119|5132|4946|4901|45
CR|20121022|105|GSM|N|SAN|30214|SAN|75082|20167|19435|19434|1
CR|20121022|105|GSM|N|SAN|30214|SAN|75118|639|616|616|0
CR|20121022|105|GSM|N|SAN|30214|SAN|75119|4860|4684|4658|26
CR|20121022|105|GSM|N|SAN|30282|SAN|75082|17462|16828|16821|7
CR|20121022|105|GSM|N|SAN|30282|SAN|75118|1607|1549|1548|1
CR|20121022|105|GSM|N|SAN|30282|SAN|75119|87245|84076|83910|166

using:

awk ' BEGIN  { OFS=FS="|" } $10 !~ /x/ { if(NF>4) $10=sprintf("%d",int(((3.77*$11)/100 + $11))); print } ' infile

output:

CR|20121022|105|GSM|N|SAN|00122|SAN|75082|6039289|5819880|5794769|25111
CR|20121022|105|GSM|N|SAN|00122|SAN|75118|2613|2519|2514|5
CR|20121022|105|GSM|N|SAN|00122|SAN|75119|157324|151609|151455|154
CR|20121022|105|GSM|N|SAN|30204|SAN|75082|95919|92435|91479|956
CR|20121022|105|GSM|N|SAN|30204|SAN|75118|894|862|835|27
CR|20121022|105|GSM|N|SAN|30204|SAN|75119|5132|4946|4901|45
CR|20121022|105|GSM|N|SAN|30214|SAN|75082|20167|19435|19434|1
CR|20121022|105|GSM|N|SAN|30214|SAN|75118|639|616|616|0
CR|20121022|105|GSM|N|SAN|30214|SAN|75119|4860|4684|4658|26
CR|20121022|105|GSM|N|SAN|30282|SAN|75082|17462|16828|16821|7
CR|20121022|105|GSM|N|SAN|30282|SAN|75118|1607|1549|1548|1
CR|20121022|105|GSM|N|SAN|30282|SAN|75119|87245|84076|83910|166
5

@rdrtx1 I'm sorry if I confused you. When I said I don't want to print exponential value, I mean exponential value has to be printed as normal. So instead of 6.03929e+06 it should print 6039289. I see your awk script is not printing that line instead! Your help is much appreciated.

6

See if update to last post works.

1 Like
7

Work like a charm!! Thank you.

8

This isn't the best solution. Internally, AWK stores all "integers" as doubles. When you use the "%d" conversion specifier the range of valid values shrinks, which could lead to an incorrect result when magnitudes are large.

The doubles themselves cannot represent arbitrarily large integers without loss of precision or overflow, but the valid range is larger than it is for %d's int type.

In the OP's code, the undesired format arises when the value calculated for $10 is converted from a number to a string. This conversion is controlled by CONVFMT, whose default value is %.6g . Simply setting CONVFMT to %.0f will give the desired result.

Regards,
Alister

1 Like