Shell Programming and Scripting

Hello Forum,

I am receiving a file daily like ASAD but at the end there is a counter like 0012 (4 digits) so my every next file +1
I want to write a control script and check the last sequence number.Let's say If I receive a file ASAD0012 then after receiving this file I wan to say that next seq_number is "0013"

How can manipulate this logic?

Thx All

Welcome to the forum.

More details, please.

If your CWD is the target directory, would

Code:

printf "%04d\n"  $(( $(ls -r ASAD* | sed 's/ASAD0*//; q; ') + 1 ))

do what you need?

Thank You RudiC;

What if I receive the file "ASAD9999" Then Can I say bext_sequence_number is:10000

What would be the result if you applied the proposed code snippet?

Code:

printf "%04d\n"  $(( $(ls -1rt KSAD9*|tail -1 | sed 's/KSAD9*//; q; ') + 1 ))

Result:0000

---------- Post updated at 02:19 PM ---------- Previous update was at 02:18 PM ----------

it worked for my received file name as KSAD9999

and result is :0000

---------- Post updated at 02:23 PM ---------- Previous update was at 02:19 PM ----------

However I can parse the seq number but If I receive the like KSAD1000
Then I can get 1001 is the next_seq_number.

BUT My actual received files as like KSAD0042 Then I can not get as my next_seq_number is:0043

that is mu problem

Moderator's Comments:

Please use CODE tags as required by forum rules!

That is not what I posted. If you feel free to modify the proposals, feel free as well to debug.

With a file ASAD9999, my above proposal yields 10000
With a file ASAD0042, my above proposal yields 0043