How to copy all files by single extension

Question

I have list of files a.xxx a.yyy. a.zzz

I need copy all files by select by extension for example

ls *.xxx | xargs cp a.* dir

I write such code

ls mysql/db/*.MYD | xargs -n1 basename | sed 's/\.MYD//g' | xargs -i cp mysql/db/{}.* new_folder

but get error

cp: cannot stat 'mysql/db/ps_opc_social_customer.*'

if you're copying all the files of similar name, like of extension `*.xxx`, you can use `find` command, like : `find /path_name/ -type f -name "*.xxx" -exec cp {} /destination_path/ \;` — User123, Jul 09 '18 at 07:52
I need copy all files *.xxx *.yyy *.zzz by select by one extension *.xxx — kusanagi, Jul 09 '18 at 08:01

score 1 · Accepted Answer · answered Jul 09 '18 at 08:05

The problem here is that the * in the last command gets expanded by the shell at the very instant when you press return, so the copy command does not get an expanded string, but the literal <file>.* string. You need to get all the files you need in one go or to use a new shell to do the glob expansion for you:

ls mysql/db/*.MYD | xargs -n1 basename | sed 's/\.MYD//g' | xargs -i bash -c "cp mysql/db/{}.* new_folder"

How to copy all files by single extension

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