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base-files: replace backticks by $(...)

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This replaces deprecated backticks by more versatile $(...) syntax.

This does not touch lib/upgrade/nand.sh, as there replacement is
not trivial.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
This commit is contained in:
Adrian Schmutzler
2020-05-10 16:47:46 +02:00
parent 5115cb0501
commit d7d6e055e9
4 changed files with 11 additions and 11 deletions
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2
package/base-files/files/lib/preinit/30_failsafe_wait
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@@ -91,7 +91,7 @@ failsafe_wait() {
grep -q 'failsafe=' /proc/cmdline && FAILSAFE=true && export FAILSAFE
if [ "$FAILSAFE" != "true" ]; then
fs_wait_for_key f 'to enter failsafe mode' $fs_failsafe_wait_timeout && FAILSAFE=true
[ -f "/tmp/failsafe_button" ] && FAILSAFE=true && echo "- failsafe button "`cat /tmp/failsafe_button`" was pressed -"
[ -f "/tmp/failsafe_button" ] && FAILSAFE=true && echo "- failsafe button "$(cat /tmp/failsafe_button)" was pressed -"
[ "$FAILSAFE" = "true" ] && export FAILSAFE && touch /tmp/failsafe
fi
}