假设我们有一个缩进很差但可以工作的配置文件（虚拟主机），例如www-example.com.conf：
<VirtualHost *:80>
# The ServerName directive sets the request scheme, hostname and port that
# the server uses to identify itself. This is used when creating
# redirection URLs. In the context of virtual hosts, the ServerName
# specifies what hostname must appear in the request's Host: header to
# match this virtual host. For the default virtual host (this file) this
# value is not decisive as it is used as a last resort host regardless.
# However, you must set it for any further virtual host explicitly.
ServerName www.example.com
ServerAlias example.com
ServerAdmin [email protected]
DocumentRoot /var/www/example.com/public
DirectoryIndex index.php
<Directory /var/www/example.com/public>
AllowOverride All
Options +FollowSymLinks +Indexes
Order Allow,Deny
Allow from all
</Directory>
# Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
# error, crit, alert, emerg.
# It is also possible to configure the loglevel for particular
# modules, e.g.
#LogLevel info ssl:warn
ErrorLog ${APACHE_LOG_DIR}/example-com-error.log
CustomLog ${APACHE_LOG_DIR}/example-com-access.log combined
# For most configuration files from conf-available/, which are
# enabled or disabled at a global level, it is possible to
# include a line for only one particular virtual host. For example the
# following line enables the CGI configuration for this host only
# after it has been globally disabled with "a2disconf".
#Include conf-available/serve-cgi-bin.conf
</VirtualHost>
# vim: syntax=apache ts=4 sw=4 sts=4 sr noet
期望的输出是：
<VirtualHost *:80>
# The ServerName directive sets the request scheme, hostname and port that
# the server uses to identify itself. This is used when creating
# redirection URLs. In the context of virtual hosts, the ServerName
# specifies what hostname must appear in the request's Host: header to
# match this virtual host. For the default virtual host (this file) this
# value is not decisive as it is used as a last resort host regardless.
# However, you must set it for any further virtual host explicitly.
ServerName www.example.com
ServerAlias example.com
ServerAdmin [email protected]
DocumentRoot /var/www/example.com/public
DirectoryIndex index.php
<Directory /var/www/example.com/public>
AllowOverride All
Options +FollowSymLinks +Indexes
Order Allow,Deny
Allow from all
</Directory>
# Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
# error, crit, alert, emerg.
# It is also possible to configure the loglevel for particular
# modules, e.g.
#LogLevel info ssl:warn
ErrorLog ${APACHE_LOG_DIR}/example-com-error.log
CustomLog ${APACHE_LOG_DIR}/example-com-access.log combined
# For most configuration files from conf-available/, which are
# enabled or disabled at a global level, it is possible to
# include a line for only one particular virtual host. For example the
# following line enables the CGI configuration for this host only
# after it has been globally disabled with "a2disconf".
#Include conf-available/serve-cgi-bin.conf
</VirtualHost>
# vim: syntax=apache ts=4 sw=4 sts=4 sr noet
我们希望tidy在 bash 脚本中“”这个配置文件（即：修复缩进）（而不破坏配置文件）。
我应该使用哪个命令行工具来完成此任务？
我努力了：
xml_pp test.txt（失败是因为它在技术上不是 XML，因为顶部有 ''*:80>'' 作为 ''>'' 的一部分）- 使用
tidy