这个问题与我的Ubuntu 18系统有关，如下所示...
% uname -a
Linux myhost.name.net 4.15.0-45-generic #48-Ubuntu SMP Tue Jan 29 16:28:13 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
I don't know how long the following has been going on in the midst of my regular system upgrades, but I have now noticed that all my terminal windows are writing UTF-8 characters. I want all terminal windows to use us.ascii (or possibly iso-8859-1). I can't find anywhere where this is set.
Furthermore, all keyboard input seems to be coming in as UTF-8, and I also want it to be us.ascii or iso-8859-1.
By default, the LANG variable is set to en_US.UTF-8 in all shells that run in my terminal windows, but I am not knowingly setting it that way within any config files.
This occurs under xterm, rxvt, and urxvt, and none of these programs are configured to utilize UTF-8, that I know of.
I'm running XFCE4, if that makes any difference. I can't find any settings for this in the XFCE4 settings, either.
Can anyone suggest a way to reset my system so that all terminal windows always display us.ascii or iso-8859-1, and all keyboard input is also us.ascii or iso-8859-1?
非常感谢你。
You aren't finding any specific settings because the overwhelming majority of modern Linux software decides the character set to be used by the locale environment variables. Use the
localecommand to view the full set of current locale settings.Have you checked
/etc/default/locale? It is the standard Debian configuration file for setting the system default locale. If you want to use iso-8859-1 instead of UTF-8, you should:en_US ISO-8859-1line is uncommented in/etc/locale.genand runsudo locale-genafter editing the file if it wasn'tLANGlocale variable (or at leastLC_CTYPE) asen_US.iso88591(or whatever is the correct form according tolocale -a | grep en_US)如果问题是从Ubuntu 18 UTF-8系统连接到使用ISO-8859-1而不是UTF-8的旧系统，则可以考虑在传出连接上插入字符映射层，而不是降级整个连接系统处理旧版编码。制作一个小的脚本（或shell函数），如下所示：
(If you want to enforce strict US-ASCII for the remote endpoint, replace
ISO 8859-1withASCII.)Name it whatever you want. Use this script/function instead of the regular
sshcommand when connecting to the systems using legacy character encoding.