使用 sed 来修改一个配置文件问题求教

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某路径下这个配置文件:
#!/bin/sh

ENABLED=yes
PROCS=chinadns
ARGS="-b 127.0.0.1 -p 5353 -c /opt/etc/chnroute.txt -s 114.114.114.114,208.67.222.222:443,8.8.8.8:53"
PREARGS=""
DESC=$PROCS
PATH=/opt/sbin:/opt/bin:/opt/usr/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

. /opt/etc/init.d/rc.func

我想修改 114.114.114.114 为本地的 DNS ，还有我已经指定这个$DNS 为本地的 DNS ，我该如何用 sed 命令修改:
EP:
#!/bin/sh

DNS=`sed -n '1p' /jffs/dns.list`

sed ........

sed 请问各位这部分该如何实现？

3 replies • 2015-08-26 09:12:16 +08:00

neilp

Aug 24, 2015

sed -i 's/^ARGS=$.*$114.114.114.114$.*$$/ARGS=\15.5.5.5\2/' a.txt

neilp

Aug 24, 2015

用这个:

sed "s/^ARGS=$.*$114.114.114.114$.*$$/ARGS=\1$DNS\2/" a.txt

qq674949301

Aug 26, 2015

@neilp thanks