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有没有办法将通配符、重定向或其他 shell 语法与 systemd 单元一起使用？

tag-icon • tag-icon systemd services wildcards
有没有办法将通配符、重定向或其他 shell 语法与 systemd 单元一起使用？

我有一个 systemd 文件来启动一个 jar 文件。但我想以 身份执行 jar 文件*.jar。有办法吗？

[Unit]
Description=Test Background

[Service]
ExecStart=/usr/bin/java -jar /var/www/test.com/*.jar
Type=simple
WorkingDirectory=/var/www/test.com

[Install]
WantedBy=multi-user.target

我尝试过这个，但是没有用。

答案1

从man 5 systemd.service（“命令行”部分）：

This syntax is inspired by shell syntax, but only the meta-characters and expansions
described in the following paragraphs are understood, and the expansion of variables is
different. Specifically, redirection using "<", "<<", ">", and ">>", pipes using "|",
running programs in the background using "&", and other elements of shell syntax are not
supported.

和：

Note that shell command lines are not directly supported. If shell command lines are to be
used, they need to be passed explicitly to a shell implementation of some kind. Example:

   ExecStart=/bin/sh -c 'dmesg | tac'

没有提到支持通配符，因此您必须像上面的示例一样将该命令包装在/bin/sh -c或中。/bin/bash -c

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