Shorten regular expression for grep command which matches empty lines
and lines with comments.
Signed-off-by: Benjamin Drung <benjamin.drung@cloud.ionos.com>
else
DNSFILE="${rootmnt}/etc/resolv.conf"
fi
else
DNSFILE="${rootmnt}/etc/resolv.conf"
fi
- if [ -f /etc/resolv.conf ] && ! grep -E -q -v '^[[:space:]]*#|^[[:space:]]*$' "${DNSFILE}"
+ if [ -f /etc/resolv.conf ] && ! grep -E -q -v '^[[:space:]]*(#|$)' "${DNSFILE}"
then
log_begin_msg "Copying /etc/resolv.conf to ${DNSFILE}"
cp -v /etc/resolv.conf "${DNSFILE}"
then
log_begin_msg "Copying /etc/resolv.conf to ${DNSFILE}"
cp -v /etc/resolv.conf "${DNSFILE}"