Rename multiple file names with bash shell

Question

We have wrong file names like [email protected] , it should be like file1@2x~ipad.png.

Not sure if this is proper place for me to raise this question. How to write the simple bash shell script to convert such file name from the wrong to the expected.

Answer 1

using bash, although this can be translated to sh/POSIX easily

for file in *; do
    [[ "$file" =~ @2x~ipad\.png$ ]] || mv "$file" "${file%@*}@2x~ipad.png"
done

---

if files are not just pngs then use this (extension agnostic), assuming a 3 character extension.

for file in *; do
    [[ "$file" =~ @2x~ipad\.[[:alpha:]]{3}$ ]] || mv "$file" "${file%@*}@2x~ipad.${file##*.}"
done

---

if those files are not grouped under some dir then try to find them recursively under a specified root dir

while read -r file; do
    [[ "$file" =~ @2x~ipad\.[[:alpha:]]{3}$ ]] || mv "$file" "${file%@*}@2x~ipad.${file##*.}"
done < <(find /path/to/root/dir/to/look/under -type -f -name "*.png")

Answer 2

You don't need a script; try mmv:

mmv "*.png" "#1~ipad.png"

Answer 3

mv [email protected] file1@2x~ipad.png You can use man mv for help.

Answer 4

You can use prename (comes with perl) to do this easily for lots of files:

prename 's/x2\.png/2x~ipad.png/' *.png