linux/tools/hv/hv_get_dns_info.sh
Olaf Hering a4d024fe2e tools/hv: reduce resouce usage in hv_get_dns_info helper
Remove the usage of cat. Replace the shell process with awk with 'exec'.
Also use a generic shell because no bash specific features will be used.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Acked-by: Wei Liu <wei.liu@kernel.org>
Link: https://lore.kernel.org/r/20241202120432.21115-1-olaf@aepfle.de
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20241202120432.21115-1-olaf@aepfle.de>
2024-12-09 18:44:15 +00:00

14 lines
619 B
Bash
Executable File

#!/bin/sh
# This example script parses /etc/resolv.conf to retrive DNS information.
# In the interest of keeping the KVP daemon code free of distro specific
# information; the kvp daemon code invokes this external script to gather
# DNS information.
# This script is expected to print the nameserver values to stdout.
# Each Distro is expected to implement this script in a distro specific
# fashion. For instance on Distros that ship with Network Manager enabled,
# this script can be based on the Network Manager APIs for retrieving DNS
# entries.
exec awk '/^nameserver/ { print $2 }' /etc/resolv.conf 2>/dev/null