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From: Lawrence =?iso-8859-13?q?D=FFOliveiro?= <ldo@nz.invalid>
Newsgroups: alt.os.linux.mint
Subject: Re: Deleting old Kernels.
Date: Sun, 10 May 2026 03:36:13 -0000 (UTC)
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On Sat, 9 May 2026 12:18:51 +0200, jjb wrote:

> #1.   Find all installed kernels
> @lines = `dpkg --list | grep -i 'linux-image'`;
> foreach (@lines) {
>     if (/^ii\s+linux-image-(\d[\S]+)/) {
>        push (@kernels, $1);
>     }
> }

You can ask the dpkg commands for exactly the info you need, to save
parsing out unwanted cruft. Here’s what I came up with in Python:

    import subprocess

    kernel_list = subprocess.check_output \
      (
        args = ("dpkg-query", "-f" "${Package}\n", "-W", "*linux-image*"),
        text = True
      ).split("\n")[:-1]

    print(kernel_list)

Here’s (partial) output on my Debian Unstable system:

    ['linux-image-6.1.0-8-amd64', 'linux-image-6.1.0-8-amd64-unsigned',
        'linux-image-6.1.0-9-amd64', 'linux-image-6.1.0-9-amd64-unsigned',
        'linux-image-6.10.11-amd64', 'linux-image-6.10.11-amd64-unsigned' ...
        'linux-image-6.9.10-amd64', 'linux-image-6.9.10-amd64-unsigned',
        'linux-image-amd64', 'linux-image-generic']