renaming files

jxh461 · #1 (**permalink**) 02-04-2008

I have a list of files named ab_*.csv

I would like to remane them all by removing the ab_ and have *.csv

I did the following but I am surely missing something.

/* wrong script */
for i in `ls -1 ab_*`; do mv ab_$i $i; done

Thanks in advance.

blowtorch · #2 (**permalink**) 02-04-2008

Quote:

Originally Posted by jxh461

I did the following but I am surely missing something.

Yes you are...

Code:

bash-3.00# ls
ab_1.csv  ab_2.csv  ab_3.csv  ab_4.csv

bash-3.00# for i in ab_*.csv; do
> echo mv $i ${i#*_}
> done
mv ab_1.csv 1.csv
mv ab_2.csv 2.csv
mv ab_3.csv 3.csv
mv ab_4.csv 4.csv

Check the Parameter Expansion section of the man page of bash/ksh for the explanation.

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