Talvez você precise usar o comando perl rename. Na minha caixa do CentOS, chama-se 'prename'.
$ ls
IMG_1.JPG IMG_2.JPG IMG_3.JPG
$ prename 's/^IMG/img/;s/\.JPG$/\.jpg/' *JPG
$ ls
img_1.jpg img_2.jpg img_3.jpg
$
$ prename -h
Usage: prename [OPTION]... PERLEXPR FILE...
Rename FILE(s) using PERLEXPR on each filename.
-b, --backup make backup before removal
-B, --prefix=SUFFIX set backup filename prefix
-f, --force remove existing destinations, never prompt
-i, --interactive prompt before overwrite
-l, --link-only link file instead of reame
-n, --just-print, --dry-run don't rename, implies --verbose
-v, --verbose explain what is being done
-V, --version-control=METHOD override the usual version control
-Y, --basename-prefix=PREFIX set backup filename basename prefix
-z, -S, --suffix=SUFFIX set backup filename suffix
--help display this help and exit
--version output version information and exit
The backup suffix is ~, unless set with SIMPLE_BACKUP_SUFFIX. The
version control may be set with VERSION_CONTROL, values are:
numbered, t make numbered backups
existing, nil numbered if numbered backups exist, simple otherwise
simple, never always make simple backups
Report bugs to [email protected]
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Se você quiser usar o comando rename
idiota de util-linux
(às vezes chamado rename.ul
), talvez seja necessário fazer isso em duas etapas, por exemplo,
$ ls
IMG_1.JPG IMG_2.JPG IMG_3.JPG
$ rename IMG img *JPG
$ rename JPG jpg *JPG
$ ls
img_1.jpg img_2.jpg img_3.jpg
$