如何重命名使用find命令找到的文件 [英] How do I rename files found with the find command

问题描述

我有一系列音乐文件夹.一些文件名包含一个下划线，我想删除它.

I have a series of music folders. Some of the file names contain an underscore which I would like to get rid of.

使用

find /Users/Chris/CDs -type f -name "*_*" 

我发现所有带下划线的文件. 看来我可以在命令中添加-execdir mv {}，但是不知道从那里添加什么. 我认为{}提供完整的路径和文件名作为带下划线的文件字符串，但是我不知道如何使用sed 's/_//g'之类的东西来删除新文件名上的_. 任何帮助将不胜感激.

I find all of the files with underscores. it appears that I can add -execdir mv {} to the command but do not know what to add from there. I think {} provides the full path and file name as a string of the file with underscores but I do not know how to use something like sed 's/_//g' to remove the _ on the new file name. Any help would be greatly appreciated.

推荐答案

尝试:

find /Users/Chris/CDs -type f -name "*_*" -execdir bash -c 'mv -i -- "$1" "${1//_/}"' Mover  {} \;

工作原理:

• -execdir bash -c '...' Mover {} \;

这将启动bash，并告诉它在单引号中运行该命令，并将Mover分配给$0，并将文件名分配给$1.

This starts up bash and tells it to run the command in the single quotes with Mover assigned to $0 and the file name assigned to $1.

mv -i -- "$1" "${1//_/}"

这将重命名文件$1.它使用bash的参数扩展功能${1//_/}，通过删除所有下划线从$1创建目标名称.

This renames file $1. This uses bash's parameter expansion feature, ${1//_/}, to create the target name from $1 by removing all underlines.

选项-i告诉mv在覆盖文件之前进行交互询问.

The option -i tells mv to ask interactively before overwriting a file.

选项--告诉mv没有更多选项.这是必需的，以便名称以-开头的文件将被正确处理.

The option -- tells mv that there are no more options. This is needed so that files whose names begin with - will be processed correctly.

让我们从包含以下文件的目录开始:

Let's start with a directory with these files:

$ ls
1_2_3_4  a_b  c_d

接下来，我们运行命令:

Next we run our command:

$ find . -type f -name "*_*" -execdir bash -c 'mv -i -- "$1" "${1//_}"' Mover  {} \;

命令完成后，文件为:

$ ls
1234  ab  cd

$0

的目的

在添加了错误的地方观察此命令:

The purpose of $0

Observe this command where we have added an error:

$ find . -type f -name "*_*" -execdir bash -c 'foobar -i -- "$1" "${1//_}"' Mover  {} \;
Mover: foobar: command not found

请注意Mover出现在错误消息的开头.这表明错误来自bash -c命令内部.

Note that Mover appears at the beginning of the error message. This signals that the error comes from within the bash -c command.

如果将Mover替换为-，则会看到:

If we replace Mover with -, we would see:

$ find . -type f -name "*_*" -execdir bash -c 'foobar -i -- "$1" "${1//_}"' -  {} \;
-: foobar: command not found

在终端中运行单个命令时，错误的根源仍然可能仍然很明显.但是，如果将此find命令埋在一个较长的脚本中，则使用更具描述性的$0(如Mover或类似内容)可能会大有帮助.

When running a single command in a terminal, the source of the error may still be obvious anyway. If this find command were buried inside a long script, however, the use of a more descriptive $0, like Mover or whatever, could be a big help.

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