[SOLVED] unix bash rename --backup=numbered from abc.txt.~1~ to abc~1~.txt

Issue

I am looking for a way to process my hughmungus amount of nested & numbered backups without changing structure or meta-data. After a bit of research I have a follow up to unix mv --backup=numbered ...

How to change the following mv,sed command to not treat .~x~ as a file ending ?

i.e.

• How to remove the "." before "~" ?
• How to apply it to non-ending-type files?

given answer that almost works

swap_file_extension_and_backup_number ()
{
IFS=$'\n'
for y in $(ls $1)
do
    mv $1/`echo $y | sed 's/ /\\ /g'` $1/`echo "$y" | sed 's/\(\.[^~]\{3\}\)\(\.~[0-9]\{1,2\}~\)$/\2\1/g'`
done
}

which is called like this swap_file_extension_and_backup_number /folder_path/ and would rename like that:

/folder_path/imfine.jpg
/folder_path/sadly_i_dont_get_changed.~1~
/folder_path/def.txt.~1~

to

/folder_path/iamfine.jpg
/folder_path/sadly_i_dont_get_changed.~1~
/folder_path/def.~1~.txt

but should create

/folder_path/iamfine.jpg
/folder_path/sadly_i_dont_get_changed~1~
/folder_path/def~1~.txt

^{In short: I am unable to process the sed/regex line. Please don't lapidate me.}

Solution

Try this:

swap_file_extension_and_backup_number ()
{
IFS=$'\n'
for y in $(ls $1)
do
        mv $1/`echo $y | sed 's/ /\\ /g'` $1/` echo "$y" | sed 's/\(\.[^~]\{3\}\)\?\(\.\)\(~[0-9]\{1,2\}~\)$/\3\1/g'`
done
}

See Regex demo

Answered By - Alireza