这是一个创建于 1737 天前的主题，其中的信息可能已经有所发展或是发生改变。
自定义 openwrt 默认设置
如何删除 dnsmasq 段落中的某一行
sed 试了试，我搞不定
config dnsmasq
option domainneeded '1'
option localise_queries '1'
option rebind_protection '1'
option rebind_localhost '1'
option local '/lan/'
option expandhosts '1'
option authoritative '1'
option readethers '1'
option leasefile '/tmp/dhcp.leases'
option resolvfile '/tmp/resolv.conf.d/resolv.conf.auto'
option nonwildcard '1'
option localservice '1'
option filter_aaaa '1'
option domain 'lan'
config dhcp 'lan'
option interface 'lan'
option start '100'
option limit '150'
option leasetime '12h'
config dhcp 'wan'
option interface 'wan'
option ignore '1'
config srvhost
option srv '_vlmcs._tcp'
option target 'OpenWrt'
option port '1688'
option class '0'
option weight '100'
如何删除 dnsmasq 段落中的某一行
sed 试了试，我搞不定
config dnsmasq
option domainneeded '1'
option localise_queries '1'
option rebind_protection '1'
option rebind_localhost '1'
option local '/lan/'
option expandhosts '1'
option authoritative '1'
option readethers '1'
option leasefile '/tmp/dhcp.leases'
option resolvfile '/tmp/resolv.conf.d/resolv.conf.auto'
option nonwildcard '1'
option localservice '1'
option filter_aaaa '1'
option domain 'lan'
config dhcp 'lan'
option interface 'lan'
option start '100'
option limit '150'
option leasetime '12h'
config dhcp 'wan'
option interface 'wan'
option ignore '1'
config srvhost
option srv '_vlmcs._tcp'
option target 'OpenWrt'
option port '1688'
option class '0'
option weight '100'
 | 1 qakito 2021-01-08 09:29:41 +08:00 uci 配置文件有提供统一的读写接口： Usage: uci [<options>] <command> [<arguments>] Commands: batch export [<config>] import [<config>] changes [<config>] commit [<config>] add <config> <section-type> add_list <config>.<section>.<option>=<string> del_list <config>.<section>.<option>=<string> show [<config>[.<section>[.<option>]]] get <config>.<section>[.<option>] set <config>.<section>[.<option>]=<value> delete <config>[.<section>[[.<option>][=<id>]]] rename <config>.<section>[.<option>]=<name> revert <config>[.<section>[.<option>]] reorder <config>.<section>=<position> Options: -c <path> set the search path for config files (default: /etc/config) -d <str> set the delimiter for list values in uci show -f <file> use <file> as input instead of stdin -m when importing, merge data into an existing package -n name unnamed sections on export (default) -N don't name unnamed sections -p <path> add a search path for config change files -P <path> add a search path for config change files and use as default -q quiet mode (don't print error messages) -s force strict mode (stop on parser errors, default) -S disable strict mode -X do not use extended syntax on 'show' |
 | 2 Raos 2021-01-08 09:36:45 +08:00 sed '/local/d' |
 | 3 lihuoqingfly 2021-01-08 09:41:29 +08:00 参考手册： https://quickref.me/sed |
 | 4 IgniteWhite 2021-01-08 09:45:47 +08:00 via iPhone 你还可以试试 awk 啊 |
 | 7 zent00 2021-01-08 09:51:20 +08:00 比如删除 option rebind_localhost '1' 这一行： sed -i "/option rebind_localhost '1'/d" dnsmasq.conf |
| 8 IgniteWhite 2021-01-08 09:56:11 +08:00 via iPhone  1 看了楼主在 5 楼的代码，我只能说 君 regex 本当上手 另外根据你系统不一样，shell 不一样，有时候要用 sed -e，有时候对于双引号的严格性也不同。这些信息也不写在问题里…… |
| 9 IgniteWhite 2021-01-08 09:59:34 +08:00 via iPhone 纠正，是-E，不是小写 |
 | 10 6IbA2bj5ip3tK49j 2021-01-08 10:17:25 +08:00 via iPhone 目测一楼才是正解 |
| 12 Raos 2021-01-08 10:30:47 +08:00 @lihuoqingfly 收藏了 |
 | 13 tachikomachann 2021-01-08 10:51:30 +08:00 via Android sed 不知道，但是 vim 的话，用 g 命令可以 :g/要匹配的关键字 /d |
 | 14 aibangjuxin 2021-01-08 12:24:04 +08:00 考虑效率？ cat a|sed -e '/./{H;$!d;}' -e 'x;/dnsmasq/!d;'|sed '/domainneeded/d' domainneeded 为要删除的行 |
 | 15 doumeki 2021-01-08 16:41:47 +08:00 说个题外话，如果是编译之前自定义，还是写成 patch 吧。 运行时的话使用一楼说的 uci. PS: 我自己写了改了几十个编译自定义文件，全是用的 patch 方式。 |
 | 16 fo0o7hU2tr6v6TCe 2021-01-08 17:18:32 +08:00 cat xx | sed "/option leasefile '\/tmp\/dhcp.leases'/d" |
 | 17 byaiu 2021-01-08 19:26:24 +08:00 via iPhone 忘了-i 了吧 |
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