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Rampage
Asked: 2020-03-24 21:59:02 +0800 CST

How does systemctl variable escaping work in a shell?

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I want do a batch job with systemctl, something like:

systemctl status v2ray-haproxy@{1..5}

That's fine. But when i change 5 to a variable：

n=5;systemctl status v2ray-haproxy@{1..$n}

It's not working now, and error:

Invalid unit name "v2ray-haproxy@{1..5}" was escaped as "v2ray-haproxy@\x7b1..5\x7d" (maybe you should use systemd-escape?) Unit v2ray-haproxy@\x7b1..5\x7d.service could not be found.

How to get this variable code work?

bash variables systemd systemctl

1 Answers

  1. try something like below

    n=5;systemctl status v2ray-haproxy@{1..$(seq 1 $n)}
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