bash - How to prevent rm from reporting that a file was not found?

Question

I am using rm within a BASH script to delete many files. Sometimes the files are not present, so it reports many errors. I do not need this message. I have searched the man page for a command to make rm quiet, but the only option I found is -f, which from the description, "ignore nonexistent files, never prompt", seems to be the right choice, but the name does not seem to fit, so I am concerned it might have unintended consequences.

Is the -f option the correct way to silence rm? Why isn't it called -q?
Does this option do anything else?

score 248 · Accepted Answer

的主要用途-f是强制删除本身不会删除的文件rm（作为一种特殊情况，它“删除”不存在的文件，从而抑制错误消息）。

您也可以使用重定向错误消息

$ rm file.txt 2> /dev/null

（或您的操作系统的等效项）。$? 您可以在调用后立即检查文件的值，rm以查看文件是否实际被删除。

score 83 · Accepted Answer

83

是的，-f这是最合适的选择。

于 2012-04-20T13:45:58.953 回答

score 33 · Accepted Answer

-f 是正确的标志，但对于测试运算符，不是 rm

[ -f "$THEFILE" ] && rm "$THEFILE"

这确保文件存在并且是常规文件（不是目录、设备节点等...）

score 17 · Accepted Answer

17

\rm -f file永远不会报告未找到。

于 2012-10-24T16:55:04.333 回答

score 6 · Accepted Answer

至于rm -f做“其他任何事情”，它确实会在需要您确认的情况下强制（-f是简写）静默删除。例如，当尝试从您可写的目录中删除您不可写的文件时。--forcerm

score -10 · Accepted Answer

我对 cshell 有同样的问题。我唯一的解决方案是在我的脚本中创建一个与“rm”之前的模式匹配的虚拟文件。

bash - How to prevent rm from reporting that a file was not found?

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