小编lin*_*fex的帖子

我正在学习 bash 代码，今天我正在学习命令grep。

如果我跑

$ ps -fU user | grep thunderbird

终端显示：

user  17410     1  0 10:09 ?        00:00:20 /usr/lib/thunderbird/thunderbird
user  18990 15896  0 12:25 pts/1    00:00:00 grep --color=auto thunderbird

但如果我跑：

$ ps -fU user | grep [t]hunderbird

终端显示：

user  17410     1  0 10:09 ?        00:00:20 /usr/lib/thunderbird/thunderbird

为什么？我阅读了指南，但我不明白。

我对 conky 有问题。我安装了 hddtemp，我的 ssd 显示如下：

/dev/sda: Crucial_CT120M500SSD1: 39°C

现在在 conky 我写道：

${alignr 10}${color}SSD M500 Crucial 120GB Temp ${color1}${hddtemp /dev/sda}ºC

但桌面显示 N/A°C。

我该如何解决？问候

我知道存在同样的问题，但我认为在那个问题中没有答案。我必须清除一些 ppa，我正在尝试使用ppa-purge以下命令：

sudo ppa-purge ppa:<ppa_name>/ppa

但什么是ppa_name？我有这个（坏）sources.list.d

danielrichter2007-grub-customizer-precise.list       google-chrome.list.save                      n-muench-vlc-precise.list                 videolan-stable-daily-precise.list.save
danielrichter2007-grub-customizer-precise.list.save  jockey.list                                  n-muench-vlc-precise.list.save            webupd8team-unstable-precise.list
dropbox.list                                         jockey.list.save                             relan-exfat-precise.list                  webupd8team-unstable-precise.list.save
dropbox.list.save                                    langdalepl-gvfs-mtp-precise.list             relan-exfat-precise.list.save             wine-wine-builds-precise.list
freefilesync-ffs-precise.list                        langdalepl-gvfs-mtp-precise.list.save        thefanclub-grive-tools-precise.list       wine-wine-builds-precise.list.save
freefilesync-ffs-precise.list.save                   lubuntu-dev-lubuntu-daily-precise.list       thefanclub-grive-tools-precise.list.save
google-chrome.list                                   lubuntu-dev-lubuntu-daily-precise.list.save  videolan-stable-daily-precise.list

但我不知道名字，例如：

sudo ppa-purge ppa:lubuntu/ppa
Updating packages lists
PPA to be removed: lubuntu ppa
Warning:  Could not find package list for PPA: lubuntu ppa

编辑

/etc/apt/sources.list.d$ grep ppa /etc/apt/sources.list /etc/apt/sources.list.d/*
/etc/apt/sources.list:deb http://ppa.launchpad.net/tualatrix/ppa/ubuntu precise main
/etc/apt/sources.list:deb-src http://ppa.launchpad.net/tualatrix/ppa/ubuntu precise main
/etc/apt/sources.list.d/danielrichter2007-grub-customizer-precise.list:# deb http://ppa.launchpad.net/danielrichter2007/grub-customizer/ubuntu precise main …