Recursively change file extensions in Bash [duplic

问题:

This question already has an answer here:

• How do I rename the extension for a batch of files? 18 answers

I want to recursively iterate through a directory and change the extension of all files of a certain extension, say .t1 to .t2. What is the bash command for doing this?

回答1:

If you have rename available then use:

find . -name "*.t1" -exec rename 's/\.t1$/.t2/' '{}' \;

If rename isn't available then use:

find . -name "*.t1" -exec bash -c 'mv "$1" "${1%.t1}".t2' - '{}' \;

回答2:

If your version of bash supports the globstar option (version 4 or later):

shopt -s globstar
for f in **/*.t1; do
    mv "$f" "${f%.t1}.t2"
done 

回答3:

Or you can simply install the mmv command and do:

mmv '*.t1' '#1.t2'

Here #1 is the first glob part i.e. the * in *.t1 .

Or in pure bash stuff, a simple way would be:

for f in *.t1; do
    mv "$f" "${i%.t1}.t2"
done

(i.e.: for can list files without the help of an external command such as ls or find)

HTH

回答4:

I would do this way in bash :

for i in $(ls *.t1); 
do
    mv "$i" "${i%.t1}.t2" 
done

EDIT : my mistake : it's not recursive, here is my way for recursive changing filename :

for i in $(find `pwd` -name "*.t1"); 
do 
    mv "$i" "${i%.t1}.t2"
done