@user1934428's solution from the question discussion gets the job done:
stty -echo; grep FAIL; stty echo
I'm using bash, for which I need to switch echo back on. Apparently zsh automatically sets echo back on at the next command prompt, in which case the closing command is not needed.
This solution works for me. Would still be interested to hear if there are other solutions.
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@user1934428 在问题讨论中的解决方案完成了工作：
我正在使用 bash，为此我需要重新打开 echo。显然 zsh 会在下一个命令提示符处自动设置回显，在这种情况下不需要关闭命令。
这个解决方案对我有用。仍然有兴趣了解是否有其他解决方案。
@user1934428's solution from the question discussion gets the job done:
I'm using bash, for which I need to switch echo back on. Apparently zsh automatically sets echo back on at the next command prompt, in which case the closing command is not needed.
This solution works for me. Would still be interested to hear if there are other solutions.