I have files with the names:
Ff6_01.png
Ff6_02.png
Ff6_03.png
...
...
FF1_01.png
FF1_02.png
FF1_03.png
I want to remove the first two letters of every file name, because then I would have a correct order of the files. Does anyone know the command in the linux shell?
You can use the syntax ${file:2} to refer to the name starting from the 3rd char.
Hence, you may do:
for file in F*png
do
mv "$file" "${file:2}"
done
In case ${file:2} did not work to you (neither rename), you can also use sed or cut:
for file in F*png
do
new_file=$(sed 's/^..//' <<< "$file") <---- cuts first two chars
new_file=$(cut -c3- <<< "$file") <---- the same
mv "$file" "$new_file"
done
$ file="Ff6_01.png"
$ touch $file
$ ls
Ff6_01.png
$ mv "$file" "${file:2}"
$ ls
6_01.png