Linux多线程高速下载
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有时候,我们用wget下载速度很慢,多数是几十K,下面我们来安装Axel。本文以CentOS 7.2 为例:安装EPEL源
yum -y install epel-release
安装完上面的源后可以直接安装axel, 下面先来安装axel,命令为:
yum install axel-2.4-9.el7.x86_64.rpmrpm -ivh axel-2.4-9.el7.x86_64.rpm
运行下axel:
[root@DESKTOP-RCOA9NR]# axelUsage: axel [options] url1 [url2] [url...]--max-speed=x -s x Specify maximum speed (bytes per second)--num-connections=x -n x Specify maximum number of connections--output=f -o f Specify local output file--search[=x] -S [x] Search for mirrors and download from x servers--header=x -H x Add header string--user-agent=x -U x Set user agent--no-proxy -N Just don't use any proxy server--quiet -q Leave stdout alone--verbose -v More status information--alternate -a Alternate progress indicator--help -h This information--version -V Version informationVisit http://axel.alioth.debian.org/ to report bugs
[root@DESKTOP-RCOA9NR soft]# axel -n 100 https://d1opms6zj7jotq.cloudfront.net/cpp/CLion-2016.1.1.tar.gz初始化下载: https://d1opms6zj7jotq.cloudfront.net/cpp/CLion-2016.1.1.tar.gzFile size: 218442478 bytes打开输出文件 CLion-2016.1.1.tar.gz.0开始下载[ 0%] .......... .......... .......... .......... .......... [ 203.9KB/s][ 0%] .......... .......... .......... .......... .......... [ 333.6KB/s][ 0%] .......... .......... .......... .......... .......... [ 404.3KB/s][ 0%] .......... .......... .......... .......... .......... [ 517.2KB/s][ 0%] .......... .......... .......... .......... .......... [ 627.5KB/s][ 0%] .......... .......... .......... .......... .......... [ 714.4KB/s][ 0%] .......... .......... .......... .......... .......... [ 818.8KB/s][ 0%] .......... .......... .......... .......... .......... [ 918.8KB/s][ 0%] .......... .......... .......... .......... .......... [ 999.2KB/s][ 0%] .......... .......... .......... .......... .......... [1073.5KB/s][ 0%] .......... .......... .......... .......... .......... [1119.8KB/s][ 0%] .......... .......... .......... .......... .......... [1203.2KB/s][ 0%] .......... .......... .......... .......... .......... [1271.7KB/s][ 0%] .......... .......... .......... .......... .......... [1353.4KB/s][ 0%] .......... .......... .......... .......... .......... [1430.9KB/s][ 0%] .......... .......... .......... .......... .......... [1513.9KB/s][ 0%] .......... .......... .......... .......... .......... [1590.2KB/s][ 0%] .......... .......... .......... .......... .......... [1658.4KB/s][ 0%] .......... .......... .......... .......... .......... [1726.5KB/s][ 0%] .......... .......... .......... .......... .......... [1799.5KB/s][ 0%] .......... .......... .......... .......... .......... [1860.6KB/s][ 0%] .......... .......... .......... .......... .......... [1929.5KB/s][ 0%] .......... .......... .......... .......... .......... [1993.9KB/s][ 0%] .......... .......... .......... .......... .......... [2058.4KB/s][ 0%] .......... .......... .......... .......... .......... [2121.1KB/s][ 0%] .......... .......... .......... .......... .......... [2159.9KB/s][ 0%] .......... .......... .......... .......... .......... [2221.6KB/s][ 0%] .......... .......... .......... .......... .......... [2286.6KB/s][ 0%] .......... .......... .......... .......... .......... [2346.6KB/s][ 0%] .......... .......... .......... .......... .......... [2400.3KB/s][ 0%] .......... .......... .......... .......... .......... [2463.9KB/s][ 0%] .......... .......... .......... .......... .......... [2525.7KB/s][ 0%] .......... .......... .......... .......... .......... [2584.3KB/s][ 0%] .......... .......... .......... .......... .......... [2631.0KB/s][ 0%] .......... .......... .......... .......... .......... [2687.1KB/s][ 0%] .......... .......... .......... .......... .......... [2724.2KB/s][ 0%] .......... .......... .......... .......... .......... [2776.7KB/s][ 0%] .......... .......... .......... .......... .......... [2802.3KB/s][ 0%] .......... .......... .......... .......... .......... [2875.1KB/s][ 0%] .......... .......... .......... .......... .......... [2942.3KB/s][ 0%] .......... .......... .......... .......... .......... [3007.8KB/s][ 0%] .......... .......... .......... .......... .......... [3063.5KB/s][ 0%] .......... .......... .......... .......... .......... [3126.0KB/s][ 1%] .......... .......... .......... .......... .......... [3166.6KB/s][ 1%] .......... .......... .......... .......... .......... [3211.6KB/s][ 1%] .......... .......... .......... .......... .......... [3246.9KB/s][ 1%] .......... .......... .......... .......... .......... [3295.4KB/s][ 1%] .......... .......... .......... .......... .......... [3348.4KB/s][ 1%] .......... .......... .......... .......... .......... [3406.3KB/s][ 1%] .......... .......... .......... .......... .......... [3454.9KB/s][ 1%] .......... .......... .......... .......... .......... [3500.1KB/s][ 1%] .......... .......... .......... .......... .......... [3539.9KB/s][ 1%] .......... .......... .......... .......... .......... [3573.9KB/s][ 1%] .......... .......... .......... .......... .......... [3592.0KB/s][ 1%] .......... .......... .......... .......... .......... [3636.6KB/s][ 1%] .......... .......... .......... .......... .......... [3682.2KB/s][ 1%] .......... .......... .......... .......... .......... [3723.3KB/s][ 1%] .......... .......... .......... .......... .......... [3767.7KB/s][ 1%] .......... .......... .......... .......... .......... [3805.0KB/s][ 1%] .......... .......... .......... .......... .......... [3846.9KB/s][ 1%] .......... .......... .......... .......... .......... [3888.3KB/s][ 1%] .......... .......... .......... .......... .......... [3929.6KB/s][ 1%] .......... .......... .......... .......... .......... [3970.9KB/s][ 1%] .......... .......... .......... .......... .......... [4009.5KB/s][ 1%] .......... .......... .......... .......... .......... [4059.5KB/s]
也可以安装yum-axelget插件 yum-axelget是EPEL提供的一个yum插件。默认的yum是单线程下载的,使用该插件后用yum安装软件时可以并行下载。yum-axelget插件原理是调用系统中的axel下载软件,然后根据软件包的大小自动设定线程数。在多线程操作时,还能避免因为线程数过多而导致服务器拒绝下载的问题,大大提高了软件的下载速度,减少了下载的等待时间。注意:通过下面这条安装命令,会同时安装axel下载软件
yum -y install yum-axelget
安装完插件过后,就可以快速的下载东西了,也可以更新系统:
yum clean all && yum makecache && yum -y update
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