ssh乱码
ssh成功后，执行命令，控制台输出会乱码。
这是为啥？
这个会出现在centos7最小化安装上。原因centos7的编码和你client端的编码不一致。 使用locale查看，例：
[远程机器]$locale
# 结果
LANG=en_US.UTF-8
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=
#=======================================
[本地机器]$locale
LANG=C.UTF-8
LC_CTYPE="C.UTF-8"
LC_NUMERIC="C.UTF-8"
LC_TIME="C.UTF-8"
LC_COLLATE="C.UTF-8"
LC_MONETARY="C.UTF-8"
LC_MESSAGES="C.UTF-8"
LC_PAPER="C.UTF-8"
LC_NAME="C.UTF-8"
LC_ADDRESS="C.UTF-8"
LC_TELEPHONE="C.UTF-8"
LC_MEASUREMENT="C.UTF-8"
LC_IDENTIFICATION="C.UTF-8"
LC_ALL=
原因
ssh时会发送本地的环境信息到远端。
ssh -v username@ip
#结果
OpenSSH_7.6p1 Ubuntu-4, OpenSSL 1.0.2n 7 Dec 2017
debug1: Reading configuration data /etc/ssh/ssh_config
.......略
debug1: Sending environment.
debug1: Sending env LC_MESSAGES = en_US.UTF-8
debug1: Sending env LC_COLLATE = en_US.UTF-8
debug1: Sending env LANG = en_US.UTF-8
debug1: Sending env LC_CTYPE = en_US.UTF-8
.......略
locale
locale有12个属性，即 12个LC_。还有两个变量：LC_ALL和LANG。 优先级： LC_ALL>LC_>LANG , LC_ALL是最上级设定或者强制设定，而LANG是默认设定值。
相关命令
localectl --help
localectl [OPTIONS...] COMMAND ...
Query or change system locale and keyboard settings.
-h --help Show this help
--version Show package version
--no-pager Do not pipe output into a pager
--no-ask-password Do not prompt for password
-H --host=[USER@]HOST Operate on remote host
-M --machine=CONTAINER Operate on local container
--no-convert Dont convert keyboard mappings
Commands:
status Show current locale settings
set-locale LOCALE... Set system locale
list-locales Show known locales
set-keymap MAP [MAP] Set console and X11 keyboard mappings
list-keymaps Show known virtual console keyboard mappings
set-x11-keymap LAYOUT [MODEL [VARIANT [OPTIONS]]]
Set X11 and console keyboard mappings
list-x11-keymap-models Show known X11 keyboard mapping models
list-x11-keymap-layouts Show known X11 keyboard mapping layouts
list-x11-keymap-variants [LAYOUT]
Show known X11 keyboard mapping variants
list-x11-keymap-options Show known X11 keyboard mapping options
设置locale
# 设置
sudo localectl set-locale LANG=en_US.utf8
# ssh client（本地机器）添加到.bashrc
export LC_ALL=en_US.UTF-8
export LANG=en_US.UTF-8
