replace dots in filenames with dashes, using sed

for f in *; do fn=`echo $f | sed 's/\(.*\)\.\([^.]*\)$/\1\n\2/;s/\./-/g;s/\n/./g'`; mv $f $fn; done
This command can rename all files in a folder changing all the dots in the filename for dashes, but respecting the final dot for the extension.
Sample Output
Image.1.2.png --> Image-1-2.png

0
2012-09-29 02:10:00

1 Alternatives + Submit Alt

  • Example of zsh globbing and parameter expansion. (*.*)(.*) ... the pattern we want to act on, a period followed by a string and then period, we split the pattern into two sections which will become $1, the first part of the match, and $2, second {1//./_}$2 ... the parameter expansion for $1 with a string substitution, followed by the match $2, the second part of the pattern.


    0
    zmv '(*.*)(.*)' '${1//./_}$2'
    khayyam · 2013-04-06 01:57:34 0

What Others Think

or (using zsh): zmv '(*.*)(.*)' '${1/./_}$2'
khayyam · 288 weeks and 3 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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