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使用 Expect 命令自动传递 JBOSS 安装程序参数

tag-icon • tag-icon bash shell-script expect systemd-nspawn jboss
使用 Expect 命令自动传递 JBOSS 安装程序参数

我有一个 JBOSS 安装程序，手动运行时会提示输入，下面是执行示例，如下所示

[sp@sp baseInstaller]$ ./advStart.sh config
Buildfile: /home/sp/jboss/sp/baseInstaller/build.xml

init:

config:
   [groovy] coa.install.props properties
   [groovy]
   [groovy]   ? indicates a response is required from you
   [groovy]   [value] is the current value
   [groovy]        to keep current value just press <enter>
   [groovy]        or type new value and press <enter>
   [groovy]   {value,value..} shows the allowed values
   [groovy] installer version 6.0.3.4
   [groovy]
   [groovy] Jboss Server Config Options (changeable after initial config)
   [groovy] -------------------------------------------------------------
   [groovy] ? host                        [sp.resource.com]
resource.com
   [groovy]     ip=10.50.55.90
   [groovy]   host changed to resource.com
   [groovy] ? bind to host only or all ports (all has security implications)
   [groovy]                               [host]
   [groovy]                                                  {host,all,custom}
all
   [groovy]   bind to host only or all ports (all has security implications) changed to all
   [groovy] ? min memory                  [64]
64

我尝试构建一个期望脚本来自动执行此过程，下面是我的脚本

[sp@sp baseInstaller]$ cat saba.sh
#!/usr/bin/expect


# Accessing command line arguments
set arg1 [lindex $argv 0]
set arg2 [lindex $argv 1]

# Printing the arguments
puts "Argument 1: $arg1"
puts "Argument 2: $arg2"

cd /home/sp/jboss/sp/baseInstaller
spawn ./advStart.sh config

# Expect the prompt for the argument with a timeout of 10 seconds
expect {
        "? host                        [sp.resource.com]" {
        # Send the host value
        send "$arg1\r"
        exp_continue
        }
    "? bind to host only or all ports (all has security implications)" {
        # Send the argument value
        send "$arg2\r"
    }
    timeout {
        puts "Error: Timed out while waiting for the prompt."
        exit 1
    }
    eof
} -timeout 10

# Wait for the script to finish
wait

现在，在执行此脚本时，它在下面的位置被击中，并且不再继续进行。你能帮我解决这个问题吗？

[sp@sp baseInstaller]$ expect saba.sh resource.com all
Argument 1: resource.com
Argument 2: all
spawn ./advStart.sh config
Buildfile: /home/sp/jboss/sp/baseInstaller/build.xml

init:

config:
   [groovy] coa.install.props properties
   [groovy]
   [groovy]   ? indicates a response is required from you
   [groovy]   [value] is the current value
   [groovy]        to keep current value just press <enter>
   [groovy]        or type new value and press <enter>
   [groovy]   {value,value..} shows the allowed values

答案1

expect对使用的形式非常严格{}。通过-timeout 10在后面添加多余的内容，{}它不再识别多行{}格式，并错误地解释要匹配的模式。如果您使用 debug （选项）运行脚本，您可以看到这一点-d。

考虑这个更简单的例子：

expect {
  "abc" exit 1
} -timeout 10

你会看到调试

expect: does "" (spawn_id exp4) match glob pattern "\n  "abc" exit 1\n"? no
"10"? no

正如您所看到的，模式被视为“{”和“}”之间的所有内容，并且“-timeout”被视为匹配时执行的命令。 “10”是下一个要匹配的模式。

此外，该模式"? host [sp.resource.com]"将不匹配，因为默认情况下该模式被假定为“glob”，并且[以一组字符开头的特殊字符也是如此。您需要在模式前加上前缀以-ex表示完全符合被通缉。确保空格与数据完全匹配。

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