$- 在 Bash 中是什么意思？
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What does $- mean in Bash?
提问by Izy-
I was playing around on the shell when by mistake, I typed echo $-and I got the result himBH. Immediately, I tried all other combinations of symbols along with the $ sign but with no luck.
I read thispost but I didn't fully understand it. Can someone please epxlain what they mean by 'shell options' and what himBH is supposed to mean?
我在 shell 上玩的时候不小心打错了，我输入echo $-了结果himBH。我立即尝试了所有其他符号组合以及 $ 符号，但没有成功。我读了这篇文章，但我没有完全理解它。有人可以解释一下'shell选项'的含义以及himBH的含义吗？
Much thanks!
非常感谢！
回答by anubhava
$-prints The current set of options in your current shell.
$-打印当前 shell 中的当前选项集。
himBHmeans following options are enabled:
himBH表示启用以下选项：
H-histexpandm-monitorh-hashallB-braceexpandi-interactive
H——histexpandm——monitorh——hashallB——braceexpandi——interactive
