Mac终端使用find命令匹配PyCharm生成的重复文件问题

Hey there! Let's get that find command working properly on your Mac terminal. The issue comes down to a couple of Mac-specific quirks with BSD find (which is what macOS uses) and a small syntax error in your original command. Here's how to fix it:

1. Fix the -type Parameter Error #

First, your original command has a typo: -type -f should be -type f (no extra hyphen after -type). That's a quick fix but essential for find to correctly target files instead of throwing an invalid parameter error.

2. Account for BSD find's Regex Behavior #

Unlike many online regex testers which use extended regular expressions (ERE) by default, macOS's find uses basic regular expressions (BRE) out of the box. This means characters like +, |, and () need special treatment unless you explicitly enable ERE.

Option 1: Use -E to Enable Extended Regex (Simpler)

Add the -E flag right after find to switch to ERE, which matches the regex syntax you tested online. Then adjust the regex to properly match file suffixes (remember to escape the . since it's a regex wildcard that matches any character):

find pathToMyFiles -type f -E -regex '.+ [0-9]+\.(py|js)$'

Let's break down the regex:

• .+: Matches the main part of the filename (e.g., manage, index)
• [0-9]+: Matches a space followed by one or more digits (covers 2, 3, 10, etc., not just single digits)
• \.(py|js)$: Escapes the . to match the actual file extension dot, then targets .py or .js files, with $ ensuring we match the end of the filename.

Option 2: Use Basic Regex (With Escapes)

If you prefer not to use -E, you'll need to escape all the ERE-specific characters in your regex to make them work in BRE:

find pathToMyFiles -type f -regex '.\+ [0-9]\+\.\(py\|js\)$'

Here, \+, \|, and \(/\) are escaped to function as their ERE equivalents in basic regex mode.

3. Test Before Deleting #

To verify the command is targeting the right files, add -print to the end to list matches without making any changes:

find pathToMyFiles -type f -E -regex '.+ [0-9]+\.(py|js)$' -print

This will output all the duplicate files PyCharm generated, so you can confirm it's working before moving on to deletion.

内容的提问来源于stack exchange，提问作者Michael Porter