From 179707ba4f8a5d64b567ae05bc287d368af33577 Mon Sep 17 00:00:00 2001 From: Benjamin Drung Date: Wed, 21 Aug 2019 16:48:29 +0200 Subject: [PATCH] Simplify empty check for /etc/resolv.conf Shorten regular expression for grep command which matches empty lines and lines with comments. Signed-off-by: Benjamin Drung --- components/9990-main.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/components/9990-main.sh b/components/9990-main.sh index 4ea8ee1..7e385f5 100755 --- a/components/9990-main.sh +++ b/components/9990-main.sh @@ -171,7 +171,7 @@ Live () 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}" -- 2.1.4