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ubuntu 修改 locale 为 zh_CN.utf8

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locale -a

显示支持的语言

vi /etc/default/locale

编辑使用的语言

ubuntu查找含有某字符串的所有文件

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如果你想在当前目录下 查找"hello,world!"字符串,可以这样:

Ubuntu 从php5.5.9升级到php7.1

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1. 先升级:

sudo apt-get update

2. 然后添加PPA:

sudo add-apt-repository ppa:ondrej/php

How to install FFmpeg on Ubuntu 14.04

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FFmpeg has been removed from Ubuntu 14.04 and was replaced by Libav. This decision has been reversed so that FFmpeg is available now in Ubuntu 15.04 again, but there is still no official package for 14.04. In this tutorial, I will show you how to install FFmpeg from mc3man ppa. Add the mc3man ppa: