remove "~" from file name

Question

I have a limited bash shell on my NAS and a lot of files that contains the char ~ in the filename. For example, I have a file in 2018/10/example~1.jpg and I have to move and rename it to allFiles/2018-10-example_1.jpg.

I have to replace the ~ with _, and add the path with the - instead of / in the filename.

Could you please help me?

P.S. Only files with .jpg/.png/.mov extension

Answer 1

I don't have a QNAP, but I believe its shell is actually BusyBox. This should work with both BusyBox and bash (although with bash, you'd also need find+cut+awk to be installed):

Assuming the year directories (ie "2018") and the "allFiles" directories are at the same level, and that level is your current working directory in your shell:

find . -name '*.jpg' | cut -c3- | awk '{ newname=$0; gsub(/~/, "_", newname); gsub(/\//, "-", newname); gsub(/^/, "allFiles/", newname); print "mv " $0 " " newname; }'

That will produce a set of commands to move all your .jpg files. Review the commands to make sure they're reasonable first. Then run them by tacking on "| sh" to the end of the above command.

Then replace '*.jpg' in the above with another file extension you wanted to process, and repeat.