Bash 脚本跳过密码保护档案的提取 [英] Bash script to skip extraction of password protected archives

问题描述

我有一个脚本，它使用以下命令对某些文件夹中的特定 zip 和\或 tar.gz 档案进行批量提取:

I have a script, which performs mass extraction of specific zip and\or tar.gz archives in some folders using command:

unzip -o "$zip_path" -d "$destination_folder"

不幸的是，当存档受密码保护时，脚本会停止并等待密码输入.

Unfortunately, when archive is password-protected, script stops and waiting for password input.

有什么办法可以省略密码进入阶段，不中断脚本运行?

Is there any way to omit password entering stage to not interrupt script running?

附言无需提取受密码保护的文件.仅省略此存档.类似的东西:

P.S. There is no need to extract password-protected files. Only omit this archives. Something like:

if "$zip_path" [ determine that archive is password-protected ]; then
echo "Password-protected"
elif "continue script execution"
fi

推荐答案

对于 zip 文件，您可以使用 -P 标志指定虚拟(错误)密码.对于未加密的文件，它将被忽略，对于加密文件，您将收到警告并且该文件将被跳过.例如:

For zip files, you can specify a dummy (wrong) password with the -P flag. For non-encrypted files it will be ignored, for encrypted files you will get a warning and the file will be skipped. For example:

unzip -P x -o "$zip_path" -d "$destination_folder"

对于 tar 文件，加密不是标准功能，所以我不确定您的意思.您可以尝试将 stdin 从 /dev/null 重定向到脚本，使其无法读取并跳到下一个文件:

For tar files, encryption is not a standard feature, so I'm not sure you what you mean. You could try to redirect stdin to the script from /dev/null to make it fail to read and skip over to the next file:

tar -xvzf "$tgz_path" --directory "$destination_folder" < /dev/null

如果这不起作用，那么您可以尝试expect.

If this doesn't work, then you can try expect.

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