Fetch and run with Debian Installer

A few weeks ago, there was a post on this blog introducing scripting_flexibility.txt. In order to understand what follows, please read that post first.

In addition to the numbered commands described in that previous post, these few lines are also in scripting_flexibilty.txt:

d-i preseed/numbered_early_command_0 string for S in \
        '#!/bin/sh -e' \
        '' \
        'URL="${1}"' \
        'FILE="`mktemp -d`/${URL##*/}"' \
        'wget -qO "${FILE}" "${URL}" && \' \
        '    sh "${FILE}"'; \
    do \
      echo "${S}" >> /bin/wget+sh; \
    done; chmod +x /bin/wget+sh

As can be seen, the command creates the executable shell script /bin/wget+sh, which can then be used from preseed files to fetch and execute scripts with one short command.

2020-05-17 21:01:32 +0000
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