Shell Programming and Scripting

Hello All,

Can you help me in writing a script for reading the specific position data in a file and if that data found in that file that particular file should be renamed.

Ex: Folder : C:\\test
and Filename : CLSACK_112214.txt,CLSACK_112314.txt,CLSACK_112414.txt
Contents in the file would be :

Code:

ISA* * * ~GS*CLS02*4010~ -> CLSACK_112214.txt
ISA* * * ~GS*CLS01*4010~ -> CLSACK_112314.txt
ISA* * * ~GS*CLS00*4010~ -> CLSACK_112414.txt

So first I need to read the first file CLSACK_112214.txt and in that I need to check conditions like

if the position from 15 to 21 == *CLS02*
then rename the current file CLSACK_112214.txt to UPDATEACK_112214.txt

Else if the position from 15 to 21 == *CLS01*
then rename the current file CLSACK_112314.txt to UPDATEACK_112314.txt

if the position from 15 to 21 == *CLS01*
then rename the current file CLSACK_112414.txt to UPDATEACK_112414.txt

So the script should read the files in the folder one by one and if any of the 3 conditions below gets satisfied then the current file should be rename from CLSACK_XXXXXX.txt to UPDATEACK_112414.txt and then it should read next file and another file until the files in the folders scanning gets completed.

So anyone can give a script for the above scenario , it should be really helpful.

Thanks
Nandu

Few questions

Code:

ISA*01*00        *01*00        *ZZ*DIEBOLDTEST    *ZZ*CELORGC03      *141203*1556*U*00401*000000306*1*T*^'GS*FA*DIEBOLDTEST*CLS01*20141203*1556*3*X*004010'

So the contents in the file would be in above manner and the file name would be in this manner CLSACK_XXXXXX.txt

Rename should be from CLSACK_XXXXXX.txt to UPDATEACK_XXXXXX.txt

Thanks

Welcome nanduedi,

I don't see how your search will be effective on this most recent input, indeed in your first post you say that you are looking in columns 15-21 for one of three strings, but the input you have provided has that at column 13-19.

The actions are the same if you match any of the three conditions, so one statement should suffice if we can be sure of the criteria.

It would be useful if you can show what you have tried so far, tell us what tools you are most familiar with (so we write considering that you will have to look after this in future) and the version & level of OS you are running. From the directory name, I'm guessing that you are using an emulator under Windows, so that may pose other problems, but we'll address those if we hit them.



Regards,
Robin