2 Commits

Author	SHA1	Message	Date
Tobias Klauser	12e33d332b	profile.d: don't bail if $SHELL_* variables are unset ... If - for whatever reason - a script uses set -u (nounset) and includes /etc/profile.d/70-systemd-shell-extra.sh (e.g. transitively via /etc/profile) the script would fail with: /etc/profile.d/70-systemd-shell-extra.sh: line 15: SHELL_PROMPT_PREFIX: unbound variable For example: $ cat > foo.sh <<EOF #!/bin/sh set -u source /etc/profile EOF $ chmod 700 foo.sh $ ./foo.sh /etc/profile.d/70-systemd-shell-extra.sh: line 15: SHELL_PROMPT_PREFIX: unbound variable Fix this by using shell parameter substitution[^1] (which is a POSIX shell concept) to set the $SHELL_* variables to the empty string if undefined. [^1]: https://pubs.opengroup.org/onlinepubs/9699919799.2018edition/utilities/V3_chap02.html	2024-12-11 18:33:41 +00:00
Lennart Poettering	229d4a9806	shell: define three system credentials we can propagate into shell prompts and welcome messages	2024-09-09 19:03:48 +02:00