Get date range between 2 date input

Shell Programming and Scripting
1

Hi Experts,

I have files name

report_20090416
report_20090417
report_20090418
report_20090420
report_20090421

I have 2 input from user
From Date: 20090417
To Date: 20090420
and I need to grep only those line in between. Output should be

report_20090417
report_20090418
report_20090420

Thanks,

2

try this:

awk -F "_" -v st=20090417 -v ed=20090420 '$2 >= st && $2 <= ed{print}' filename

cheers,
Devaraj Takhellambam

3

Try this,
Variables i1 and i2 are inputs

$ echo $i1
20090417
 
$ echo $i2
20090420
 
$ cat file
report_20090416
report_20090417
report_20090418
report_20090420
report_20090421
 
$ awk -F"_" ' $2 >= '$i1' && $2 <= '$i2' {print}' file
report_20090417
report_20090418
report_20090420
4

Thank you all for your help. It works.