problem with rename

punj33 · 05-26-2009, 07:31 AM

my problem is
suppose i have files
punj0001.JPG
punj0002.JPG
and so on.

and i want it to be renamed as
holiday_punj0001_home.JPG
and so on
so i did:
rename -n 's/$.\{8\}$/holiday_\1_home/' *.JPG (keeping in mind SED)
then it said to change \1 to $1
then on
rename -n 's/$.\{8\}$/holiday_\1_home/' *.JPG
it didnt show any output
could you help me out ?
or is it the rules of sed doesn't apply to rename
i have no idea about PERL (is it needed ?)

colucix · 05-26-2009, 07:51 AM

Nope. From the rename man page, the arguments from and to are patterns, not sed commands. Using rename, you can do it in two passes:

Code:

$ rename pun holiday_pun *.JPG
$ rename .JPG _home.JPG *.JPG

otherwise use a for loop:

Code:

for file in *.JPG
do
  mv $file $(echo $file | sed 's/\(.\{8\}\)/holiday_\1_home/')
done

Kenhelm · 05-26-2009, 02:19 PM

There are two versions of rename:

Binary
http://linux.die.net/man/1/rename

Perl script (Debian-based Linux distros)
http://tips.webdesign10.com/how-to-b...n-the-terminal

The perl version takes a perl expression as its first parameter.
Perl expressions use perl regular expressions which are in many ways similar to those used with 'sed -r' and 'egrep'.
Try

Code:

rename -n 's/(.{8})/holiday_$1_home/' *.JPG

david1941 · 05-26-2009, 02:37 PM

This should do it too, using only bash.

for file in *.JPG
do
mv $file holiday_${file%.*}_home.JPG
done

Dave

punj33 · 06-22-2009, 12:06 AM

thanks everyone.
it worked