Using Variable 2

[nithink]

hi, I've a c-shell script, in which i've a variable "ydate" which has a value 20021106. And I want to use this variable in a awk statement as below,
awk -F_ '{if ($1 ~ /xyz/ && $2 > $ydate) print $0}' ./tmp1 > ./tmp2

but it doesnt take the value of "ydate".. it works well when i hardcode that value without using the variable... can you pls help me get out of this...

 

[vgersh99]

awk -F_ -v ydate=$ydate '{if ($1 ~ /xyz/ && $2 > ydate) print $0}' ./tmp1 > ./tmp2 vlad
+---------------------------+
|#include<disclaimer.h> |
+---------------------------+

 

[nithink]

hi vgersh, thanx for your reply but its giving this following error when run... can you pls let me know whats this error abt ?

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

 

[vgersh99]

if on Solaris, use 'nawk' vlad
+---------------------------+
|#include<disclaimer.h> |
+---------------------------+

 

[nithink]

THank yu very much Vgersh.. it worked perfectly fine.. If possible can i know what that syntax actually does ? 'coz i'm totally new to scripting..

nawk -F_ -v ydate=$ydate '{if ($1 ~ /xyz/ && $2 > ydate) print $0}' ./tmp1 > ./tmp2

 

[jamisar]

on solaris
cd /bin
mv awk old.awk
ln -s nawk awk
-----------
when they don't ask you anymore, where they are come from, and they don't tell you anymore, where they go ... you'r getting older !

 

[vgersh99]

-v ydate=$ydate - takes the value of SHELL's variable 'ydate' and assigns it to the NAWK's variable 'ydate' [bad naming.... I know, I know]

The NAWK's 'ydate' is passed to the NAWK script and used for comparison.

You don't want me to explain the REST of the script, do you?

vlad
+---------------------------+
|#include<disclaimer.h> |
+---------------------------+

 

[nithink]

thanks Vgersh... got it...

thanks jamisar...