UNIX comm command does not work with underscore _

[Jungshyh Hwang]

Hi:
 I am using /sr/bin/comm executable size 12956 byte
/usr/bin/comm: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for
GNU
/Linux 2.2.5, dynamically linked (uses shared libs), stripped

I have a cronjob works on solaris platform using the comm command.
When application move to Linux machine. The cronjob output become incorrect.
After debugging I come up with a simple testcase with UNIX comm command on
Linux
platform does not handle undercore character.
On solaris machine it works with =>
$ comm -23 openuser_target_gsiap_test2 aitap_it_sec_user_audit_gsiap_test2
DBHAVSAR
On Linux it fail with
$ comm -23 openuser_target_gsiap_test2 aitap_it_sec_user_audit_gsiap_test2
DBHAVSAR
DBL_AML_METRICS
- File openuser_target_gsiap_test2 content =>
DBHAVSAR
DBL_AML_METRICS
- aitap_it_sec_user_audit_gsiap_test2 content =>
DBLUM
DBL_AML_METRICS
- Can you please see whether you can come out with a workaround or find a
new version of comm or a new switch ...etc.
Thanks,
Jungshyh Hwang
(O) 650 506-9147