I have got the following files in current dir:
file_73tyd7d.jpg
file_e8djuh.jpeg
file_eidie8d.jpg
file_iadiijj.jpg
I want:
0.jpg
1.jpeg
2.jpg
3.jpg
I first do:
NB=0;for FILE in `ls`;do echo mv "${FILE}" "${NB}.${FILE#*.*}";((NB=NB+1));done
or
NB=0;for FILE in `ls`;do echo mv "${FILE}" "${NB}"."${FILE#*.*}";((NB=NB+1));done
output:
file_73tyd7d.jpg 0.jpg -> why is that?
mv file_e8djuh.jpeg 1.jpeg
mv file_eidie8d.jpg 2.jpg
mv file_iadiijj.jpg 3.jpg
apart from the first file, it looks good. now I do:
NB=0;for FILE in `ls`;do mv "${FILE}" "${NB}.${FILE#*.*}";((NB=NB+1));done
and I have got the following error:
mv: cannot stat ''$'\033''[H'$'\033''[2J'$'\033''[3J'$'\033''[0m'$'\033''[01;35mfile_73tyd7d.jpg'$'\033''[0m': No such file or directory
mv: cannot stat ''$'\033''[01;35mfile_e8djuh.jpeg'$'\033''[0m': No such file or directory
mv: cannot stat ''$'\033''[01;35mfile_eidie8d.jpg'$'\033''[0m': No such file or directory
mv: cannot stat ''$'\033''[01;35mfile_iadiijj.jpg'$'\033''[0m': No such file or directory
For this task, do not use ls at all. ls is supposed to be used interactively (See Why you shouldn't parse the output of ls). Also, do not use all-caps names for your own variable names (See Correct Bash and shell script variable capitalization). Your script should have been written something like this:
#!/bin/bash
nb=0
for file in *; do
echo mv -i -- "$file" "$((nb++)).${file##*.}"
done