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Is it possible to filter output of lvs -a using lvs command (I know that it is possible with grep, however I look for some approach with lvm only).

I mean listing only snapshosts and/or filter by name (regex or simple pattern).

Any ideas?

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Yes, you can use the --select option to filter on any number of criteria; for example, on the LV name:

sudo lvs -a --select 'lv_name =~ yourregex'

Run lvs --select help to see the full list of operators and fields you can use.

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