How to select all except?

[barart]

On your find/zip line:
find . | egrep "\.(sav|srm)$" | zip -@ $backupDir/"$archiveFolderName"/$Y/$M/$D/"$timestamp"$backupSuffex.zip
You search for .sav and .srm files... this files works only for one type of emulator and system but there are too much files missing if you use others systems and emulators, so instead of search for savefiles, how can i change the line to include everything except some extensions Like: "find * except '.n64,.z64,.zip,.nes'?

in my point of view its easy to know and create a exception for roms extensions that we add to our retropie rather than know and include all save files for all systems and emulators

[BOBdotEXE]

most old systems (including N64) use .srm or .sav

But if you find an emulator that actually uses a different save file type such as ".bin"

you can change the line to:

find . | egrep "\.(sav|srm|bin)$" | zip -@ $backupDir/"$archiveFolderName"/$Y/$M/$D/"$timestamp"$backupSuffex.zip

Changing this line to just exclude roms would take a bit more work, as you'd have to specificity every single rom type, and the type of any other file in the directory.

[barart]

Hello BOBdotEXE, thanks for your reply,

I think you dont get my question

I know that extensions mentioned on my questions are roms qnd obviosly i do not want to backup the roms.

But i want to backup EVERYTHING except some extensions (like roms) so, instead of specify what we want to backup how can i specify what i do not want to?

Something like:

Find everything except .nes|.n64|.zip etc.

I already have a list of what files i do not want, so there will be no more work for me, i think that doing this in this way will be better than specifying what to backup (because there are too much unkown files on my retropie instance and i know what roms i have)