bash 如何使用 Groovy 执行带有反引号的 shell 命令？
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How can I use Groovy to execute a shell command that has backticks?
提问by Dag
I'm unable to use Groovy to execute a shell command that has backticks. A simplified example:
我无法使用 Groovy 执行带有反引号的 shell 命令。一个简化的例子：
println "echo `date`".execute().text
I searched around and tried to figure out how to escape them somehow, but without luck.
我四处寻找并试图弄清楚如何以某种方式逃离他们，但没有运气。
回答by Faiz
What happens if you try:
如果你尝试会发生什么：
println ["bash", "-c", "echo `date`"].execute().text
My guess would be that with
我的猜测是
"echo `date`".execute()
java's Runtime#exec(String)would be used underneath, if you were calling execute()on a String. In which case, this simply tokenizes the string and executes the program echowith the argument
Runtime#exec(String)如果您正在调用execute()字符串，则将在下面使用java 。在这种情况下，这只是标记字符串并echo使用参数执行程序
`date`
or
或者
$(date)
but that's shell (bash) syntax, and must be executed via bash.
但这是 shell (bash) 语法，必须通过 bash 执行。
