首先是一个解压脚本，
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#!/bin/sh
# needed packages: tar bzip2 gzip unzip p7zip-full unrar
current=`pwd`
dest=`dirname "$@"`
cd "$dest"
filetype=`file -bi "$@"`
case $filetype in
"application/x-tar")
tar -xf "$@"
;;
"application/x-bzip2")
tar -xjf "$@"
;;
"application/x-gzip")
tar -xzf "$@"
;;
"application/x-zip")
unzip "$@"
;;
"application/zip")
unzip "$@"
;;
"application/octet-stream")
7z x "$@"
;;
"application/x-rar")
unrar e "$@"
;;
"application/x-debian-package")
dpkg-deb -x "$@" .
;;
esac
cd "$current"
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把上面的存为extract_here，（我在我的home建立了个bin路径，把他放到里面去了。）
chmod +x extrat_here。（或右击鼠标->属性->权限->选中可执行）
然后是dolphin的servermenu文件
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[Desktop Entry]
Type=Service
X-KDE-ServiceTypes=KonqPopupMenu/Plugin,application/x-gzip,application/x-tar,application/x-compressed-tar,application/x-bzip-compressed-tar,application/zip,application/x-bzip,application/x-rar,application/x-tarz,application/x-archive,application/x-deb,application/x-zip-compressed,application/x-7z-compressed,application/x-chm
Actions=ExtractDir;
X-KDE-AuthorizeAction=shell_access
[Desktop Action ExtractDir]
Name=Extract_Here
Icon=application-x-archive
Exec=/你的路径/extract_here %f
X-Ubuntu-Gettext-Domain=desktop_kdebase
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把上面的存为extract_here.desktop（注意Exec=这换上你自己的路径）
放在ServiceMenus路径 /home/你的用户名/.kde/share/kde4/services/ServiceMenus/
(例如 /home/fry/.kde/share/kde4/services/ServiceMenus/extract_here.desktop )
OK
ps:可以解压缩tar, tar.gz, tar.bz2, tgz, zip, rar, 7z, deb, chm 格式的文件，（假定gz,bz2文件都是tar打包的），解压脚本写的不严谨（偷懒），好歹坚持到明年一月kde4.2正式出来。
又修改一下shell script
