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Hi nezabudka,
Thanks for your help, but I found 1.txt does not change to 2.txt, please help again. Many thanks.
OLD file is /tmp/path13/1.txt, NEW file is /tmp/path13/12.txt



BNFILE=$(echo...

I tried to create the following scripts but it can't increment the last number from 012 to 013, anyone help? Many thanks.


#!/bin/sh
cat file.txt | while read FN
do
FNPATH=${FN%/*}
...

I am a beginner in shell script, thank you very much indeed.

Thanks for your reply

------ Post updated at 02:43 AM ------

And I want to increment a Variable but it doesnt work.
How can extract digits at the end of a string and increment variable value...

How can I extract digits at the end of a string in UNIX shell scripting or perl?
cat file.txt
abc_d123_4567.txt
A246_B789.txt
B123cc099.txt
a123_B234-012.txt
a13.txt


What can I do here?...