Bash脚本更新ssl.conf中ssl证书文件的路径 [英] Bash script to update path to ssl certificate file in ssl.conf

问题描述

我正在创建一个可重用的脚本，用于自动在服务器设置中设置新的SSL.我有几行需要更新文件路径.

I am creating a reusable script for automating the setup of new SSLs on server setups. I have a few different lines that need to get the file paths updated.

ssl.conf文件中的默认值如下所示(一个带有#号):

The defaults in the ssl.conf file look like this (One has leading # tag):

SSLCertificateFile /etc/pki/tls/certs/localhost.crt

我需要在bash脚本中对其进行动态设置，以使其最终像这样:

I need it to be dynamically set in the bash script, to end up like this:

SSLCertificateFile /etc/pki/tls/certs/example.crt

到目前为止，我是从这个开始的，但是我不确定自己在做什么.

So far I started out with this, but i'm not sure what I'm doing.

~/update_ssl_conf.sh

代码:

#!/bin/bash
SSL_CONFIG_PATH="/etc/httpd/conf.d/ssl.conf"

SSL_DEFAULT_CERT_PATH="SSLCertificateFile /etc/pki/tls/certs/localhost.crt"
SSL_CERT_PATH="SSLCertificateFile /etc/pki/tls/certs/example.crt"
sed "s/.*\b$SSL_DEFAULT_CERT_PATH\b.*/$SSL_CERT_PATH/" $SSL_CONFIG_PATH

***更新区域，还需要sed命令来更新以#开头的行.

***UPDATED AREA, Also need sed command to update lines that begin with #.

ssl.conf文件中的默认值看起来像这样(带有#号标记):

The defaults in the ssl.conf file look like this (Has leading # tag):

#SSLCACertificateFile /etc/pki/tls/certs/ca-bundle.crt

我需要在bash脚本中对其进行动态设置，以使其最终像这样:

I need it to be dynamically set in the bash script, to end up like this:

 SSLCACertificateFile /etc/pki/tls/certs/example-ca-bundle.crt

到目前为止，我是从这个开始的，但是我不确定自己在做什么.

So far I started out with this, but i'm not sure what I'm doing.

~/update_ssl_conf.sh

代码:

#!/bin/bash
SSL_CONFIG_PATH="/etc/httpd/conf.d/ssl.conf"

SSL_DEFAULT_CA_CERT_PATH="#SSLCACertificateFile /etc/pki/tls/certs/ca-bundle.crt" 
SSL_CA_CERT_PATH="SSLCACertificateFile /etc/pki/tls/certs/example-ca-bundle.crt"

我尝试了接受的

sed -i "s|.*\b#$SSL_DEFAULT_CA_CERT_PATH\b.*|$SSL_CA_CERT_PATH|" SSL_CONFIG_PATH

和

sed -i "s|(?s).*(?<!\\w)$SSL_DEFAULT_CA_CERT_PATH(?!\\w).*|$SSL_CA_‌​CERT_PATH|" $SSL_CONFIG_PATH

都不起作用，因为正则表达式不正确.

neither are working because the regular expression is not correct.

推荐答案

问题在于斜线.您的变量包含它们，并且最终命令将具有多个正斜杠，这会影响您的 s/< search>/< replace/语法.只需将您的 sed 单词分隔符从/更改为 | (或其他任何字符，例如说 @ 或〜)对其进行修复.

The problem is with slashes. Your variable contains them and the final command will have multiple forward slashes, which affect your original sed syntax of s/<search>/<replace/ syntax. Just change your sed word separator from / to | (or any other character e.g say @ or ~) to fix it.

sed -i "s|.*\b$SSL_DEFAULT_CERT_PATH\b.*|$SSL_CERT_PATH|" file

应该可以解决您的问题，并使用 -i 标志进行就地替换，并使用 -i.bak 以<代码><文件名> .bak

should solve your problem and use the -i flag to do in-place substitution and do -i.bak to save a backup of the file in the format <filename>.bak

GNU sed ， man 页面说

/字符可以在任何给定的s命令中统一替换为任何其他单个字符./字符(或代替其使用的任何其他字符)仅在前跟\字符的情况下才可以出现在正则表达式或替换中.

The / characters may be uniformly replaced by any other single character within any given s command. The / character (or whatever other character is used in its stead) can appear in the regexp or replacement only if it is preceded by a \ character.

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