我不知道爲什麼沒有拿出早些時候在我的任何看似無盡的谷歌搜索，但可以肯定的是金：http://www.gohome.org/wl/doc/wl_23.html
Filter Folder
A folder to access virtual folder which collects all messages that satisfy a condition.
Format:
`/' condition `/' target-folder
In the condition part, you can specify following.
Partial filter: `first:number', `last:number' first: number messages are picked from top of folder. last: number messages are picked from bottom of folder. Example:
/last:10/-fj.os.linux -> Latest 10 messages from -fj.os.linux are picked.
/first:20/%inbox -> First 20 messages from %inbox are picked.
Date filter: `since:date', `before:date' since: only messages arrived since date are picked. before: only messages arrived before date are picked. You can specify following as date.
yesterday -> a day before today.
lastweek -> same day of last week.
lastmonth -> same day of last month.
lastyear -> same day of last year.
numberdaysago -> number days ago. (e.x. '3daysago')
day-month-year -> specify date directly (ex. 1-Nov-1998)
Example:
/since:3daysago/+inbox -> messages arrived since 3 days ago in +inbox
are picked.
/before:yesterday/+inbox -> messages arrived before yesterday in +inbox
are picked.
Field filter: `field:value' All messages that have field and its value is value are picked. field and value are case insensitive. Example:
/from:teranisi/+inbox -> In +inbox, messages which have From: field
and its value includes "teranisi" string are picked.
/body:foo/%inbox -> In %inbox, messages which have "foo" text
are picked.
Compound condition If you combine conditions by character `|', it is considered as OR condition. `&' is considered as AND condition, likewise. Condition can be grouped by parentheses (`(', and `)'). `/tocc:xxxx/' is an abbreviation of `/to:xxxx|cc:xxxx/'. `/!tocc:xxxx/' is an abbreviation of `/!to:xxxx&!cc:xxxx/'. Example:
/from:teranisi&!to:teranisi/+inbox
-> In +inbox, messages are picked if the message's
From: field includes "teranisi" and
To: field doesn't include "teranisi".
/tocc:"Yuuichi Teranishi"/+inbox
-> In +inbox, messages are picked if the
message's To: field or Cc: field includes
"Yuuichi Teranishi".
/(from:yt|from:teranisi)&subject:report/+inbox
-> In +inbox, messages are picked if the message's
From: field includes "yt" or "teranisi", and
Subject includes "report".
Tip for string description:
Space character, `"', `/',`)',`|' and `&' should be enclosed with `"' in value string. (`"' should be escaped with `\' in it). You can enclose the string with `"' even it does not contain these characters.
Advanced example:
*%inbox,/from:teranisi/%[email protected]
-> Messages in %inbox or
message is in the %[email protected] folder and it's From field
includes "teranisi" are collected.
/last:100//to:teranisi/*+inbox,%inbox
-> Latest 100 messages which is in the +inbox or %inbox folder
and To: field matches "teranisi".
/from:hogehoge//last:20//tocc:teranisi/%#mh/[email protected]
-> Pick messages which have From: field and it includes "hogehoge"
from latest 20 messages in the %#mh/[email protected]
and To: or Cc: field includes "teranisi".