如何在Unix Solaris全文件系统中提取含任意邮箱的文件列表

Alright, let's sort this out for your Solaris system. You've been using a command to hunt down files with emails from a specific domain, but now you need to expand that to catch any valid email address instead. Here's how to adjust your approach properly:

First, a quick note on your original command: the regex /*@ isn't valid syntax (you probably meant .*@ to match any characters before the @ symbol). But to match standard emails of any domain, we'll need a more robust regex, plus tweaks to work smoothly with Solaris's tools.

Recommended Solutions #

Option 1: Use find with -exec (Most Efficient) #

This approach avoids potential issues with filenames containing spaces and is generally more efficient than piping to xargs:

find / -type f -exec grep -lE "[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}" {} + 2>/dev/null

Let's break this down:

• find / -type f: Scans the entire root filesystem for regular files (skips directories, symlinks, and special files like device nodes)
• -exec grep -lE ... {} +: Passes batches of found files to grep (the + means it groups files instead of running grep once per file)
• -l: Makes grep output only the filenames that contain a match, not the matching lines
• -E: Enables extended regular expressions (ERE) for a cleaner, more readable email pattern
• The regex [A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}:
  • [A-Za-z0-9._%+-]+: Matches the local part of the email (before @) — covers all standard valid characters
  • @: The mandatory separator between local and domain parts
  • [A-Za-z0-9.-]+: Matches the main domain name (e.g., example in example.com)
  • \.[A-Za-z]{2,}: Matches the top-level domain (e.g., .com, .org, .co.uk) requiring at least 2 characters
• 2>/dev/null: Suppresses permission-denied errors when accessing restricted system directories like /proc or /dev

Option 2: Stick with xargs (If You Prefer) #

If you want to keep using xargs, add -print0 to find and -0 to xargs to handle filenames with spaces or special characters:

find / -type f -print0 | xargs -0 grep -lE "[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}" 2>/dev/null

Solaris-Specific Notes #

• If your Solaris version doesn't support grep -E, replace it with egrep (it's the equivalent tool for extended regex on older Solaris systems):

  find / -type f -exec egrep -l "[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}" {} + 2>/dev/null
  

• If you don't need to scan the entire filesystem, replace / with your target path (e.g., /opt/myuser/V9/server/instance1/default/packs*) like you did in your example.

内容的提问来源于stack exchange，提问作者user9439034