是否有相当于“ shopt -s nullglob”的ZSH？
我目前正在处理一个从桌面上删除所有PNG文件的脚本。我想创建一个文件路径的数组，然后在每个文件上使用rm命令。
这是相关的代码：
#!/usr/bin/env bash
shopt -s nullglob
files=("$HOME"/Desktop/*.png)
files_found="${#files[@]}"
shopt -u nullglob
建议在没有匹配文件的情况下使用shopt。
但是，我在MacOS上，刚刚发现shopt不适合ZSH。当我运行脚本时，找不到命令：shopt。
我发现ZSH具有一个称为setopt的等效物“>文档我无法完全弄清楚哪个选项是正确使用的选项。我似乎也找不到任何例子。
谁能向我指向正确的方向？
I'm currently working on a script that deletes all the PNG files from my Desktop. I want to create an array of file paths then use the rm command on each one.
This is the relevant bit of code:
#!/usr/bin/env bash
shopt -s nullglob
files=("$HOME"/Desktop/*.png)
files_found="${#files[@]}"
shopt -u nullglob
It has been recommend that I use shopt in case of no matching files.
However I'm on MacOS and just discovered that shopt is not available for ZSH. When I run the script I get command not found: shopt.
I've found the ZSH has an equivalent called setopt however after reading through the documentation I can't quite figure out which option is the correct one to use in the case. I can't seem to find any examples either.
Can anyone point me in the right direction?
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zsh中的相应选项是csh_null_glob（在中记录在man zshoptions中）。B（据我所知，模式消失的想法消失了而不是从字面上看待来自
csh。The corresponding option in
zshisCSH_NULL_GLOB(documented inman zshoptions).b(As far as I can tell, the idea of a pattern disappearing rather than being treated literally comes from
csh.)更像 zsh 的方法不是将其设置为通用选项（如 chepner 给出的答案中所建议的那样），而是决定每个模式，是否想要具有 nullglob 效果。例如，
如果没有与该模式匹配的文件，则简单地跳过循环。
The more zsh-like approach is not to set this as a general option (as suggested in the answer given by chepner), but to decide on each pattern, whether or you want to have the nullglob effect. For example,
simply skips the loop if there are no files matching the pattern.
只需意识到
shopt找不到的问题是我自动加载文件作为ZSH函数所致。当我像这样运行时，该脚本运行得很好：
bash ./tidy-desktop以前我只是使用命令
tidy-desktop而不是我的
zsh_aliases：感谢@Charles Duffy帮助我弄清楚那里发生了什么！
Just come to the realisation that the issue of
shoptnot being found was due to me auto-loading the file as a ZSH function.The script worked perfectly when I ran it like so:
bash ./tidy-desktopPreviously I had been running it just with the command
tidy-desktopInstead I now have this in my
zsh_aliases:Thanks to @Charles Duffy for helping me figure out what was going on there!