调用尚未安装的可执行文件会显示一条德语消息

Question

调用任何尚未安装的可执行文件会导致一条不容易理解的消息：

$ tcl
Der Befehl \xbbtcl\xab wurde nicht gefunden, meinten Sie vielleicht:
 Befehl \xbbtel\xab aus dem Paket \xbborville-write\xab (universe)
 Befehl \xbbtc\xab aus dem Paket \xbbiproute2\xab (main)
 Befehl \xbbtcs\xab aus dem Paket \xbbtcs\xab (universe)
 Befehl \xbbtjl\xab aus dem Paket \xbbpvm-examples\xab (universe)
 Befehl \xbbcl\xab aus dem Paket \xbbcl-launch\xab (universe)
 Befehl \xbbecl\xab aus dem Paket \xbbecl\xab (universe)
 Befehl \xbbtcal\xab aus dem Paket \xbbgcal\xab (universe)
 Befehl \xbbmcl\xab aus dem Paket \xbbmcl\xab (universe)
 Befehl \xbbccl\xab aus dem Paket \xbbcclive\xab (universe)
 Befehl \xbbtbl\xab aus dem Paket \xbbgroff-base\xab (main)
 Befehl \xbbncl\xab aus dem Paket \xbbncl-ncarg\xab (universe)
 Befehl \xbbgcl\xab aus dem Paket \xbbgcl\xab (universe)
 Befehl \xbbtdl\xab aus dem Paket \xbbtdl\xab (universe)
 Befehl \xbbtcc\xab aus dem Paket \xbbtcc\xab (universe)
 Befehl \xbbtcm\xab aus dem Paket \xbbtcm\xab (universe)
tcl: Befehl nicht gefunden.
bogdanbiv@bivub1404:~$ which tcl
bogdanbiv@bivub1404:~$ hgjkh
hgjkh: Befehl nicht gefunden.

还有十六进制字符（\xbb 和\xab）有什么问题。我的系统是 Kubuntu 14.04，值得信赖：

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 14.04.1 LTS
Release:        14.04
Codename:       trusty

我的系统语言是英语，但是我为我的国家/地区设置了一些区域设置：

$ locale
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
LANG=en_RO.UTF-8
LANGUAGE=en:de:ro:en
LC_CTYPE="en_RO.UTF-8"
LC_NUMERIC=en_RO.UTF-8
LC_TIME=en_RO.UTF-8
LC_COLLATE="en_RO.UTF-8"
LC_MONETARY=en_RO.UTF-8
LC_MESSAGES="en_RO.UTF-8"
LC_PAPER=en_RO.UTF-8
LC_NAME=en_RO.UTF-8
LC_ADDRESS=en_RO.UTF-8
LC_TELEPHONE=en_RO.UTF-8
LC_MEASUREMENT=en_RO.UTF-8
LC_IDENTIFICATION=en_RO.UTF-8
LC_ALL=

不知何故，我偶然发现了一些相关信息（更多信息见http://pastebin.com/4XGakzgL）：

Command-not-found-Version: 0.3
Python-Version: 3.4.0 final 0

更新：我尝试了各种语言环境修复工具：出现一个弹出窗口，说我的语言支持不完整，并愿意提供帮助。这很好，但它什么也没做。好吧，至少现在，德语消息以 UTF 格式正确显示，并且强制使用英语确实有效：

$ LANGUAGE=en tcl
No command 'tcl' found, did you mean:    # CORRECT, this should be normal behaviour 
$ LANGUAGE=en:de:ro tcl
Der Befehl »tcl« wurde nicht gefunden, meinten Sie vielleicht: # This is German

这是locale截至目前的输出：

LANG=en_GB.UTF-8
LANGUAGE=en:de:ro
LC_CTYPE="en_GB.UTF-8"
LC_NUMERIC=en_GB.UTF-8
LC_TIME=en_GB.UTF-8
LC_COLLATE="en_GB.UTF-8"
LC_MONETARY=en_GB.UTF-8
LC_MESSAGES=POSIX
LC_PAPER=en_GB.UTF-8
LC_NAME=en_GB.UTF-8
LC_ADDRESS=en_GB.UTF-8
LC_TELEPHONE=en_GB.UTF-8
LC_MEASUREMENT=en_GB.UTF-8
LC_IDENTIFICATION=en_GB.UTF-8
LC_ALL=

Answer 1

我认为问题在于错误行：

locale: Cannot set LC_MESSAGES to default locale: No such file or directory

当尝试打印消息时，C 库将尝试第一个区域设置，在LANGUAGE您的情况下是en但它有错误；所以它切换到第二个de（德语）。并且您的de语言环境可能不是 UFT-8，因此您有奇怪的十六进制数据（可能\xbb是\xab某种开闭引号）。

顺便说一句，哪个区域设置是en_RO？在我的系统中，我只有以下内容：

en_AG,en_AG.utf8,en_AU.utf8,en_BW.utf8,en_CA.utf8,en_DK.utf8,en_GB.utf8,en_HK.utf8,en_IE.utf8,en_IN,en_IN.utf8,en_NG,en_NG.utf8,en_NZ.utf8,en_PH.utf8,en_SG.utf8,en_US.utf8,en_ZA.utf8,en_ZM,en_ZM.utf8,en_ZW.utf8

所以你可能是从一些非标准包中添加它的？（我不知道，只是问问）。

您是否尝试检查语言支持是否已完全加载？（Gnome 中的设置 -> 语言支持，可能会因 Ubuntu 风格而异）。有时它会变得非常混乱，选择该选项会给您带来以下结果：

在我的系统中它工作正常并且可以正常切换语言：

romano@pern:~$ tcl
No command 'tcl' found, did you mean:
 Command 'tcm' from package 'tcm' (universe)
 Command 'tcal' from package 'gcal' (universe)
 Command 'tcs' from package 'tcs' (universe)
 Command 'tdl' from package 'tdl' (universe)
 Command 'tcc' from package 'tcc' (universe)
 Command 'tel' from package 'orville-write' (universe)
 Command 'tjl' from package 'pvm-examples' (universe)
 Command 'gcl' from package 'gcl' (universe)
 Command 'mcl' from package 'mcl' (universe)
 Command 'ncl' from package 'ncl-ncarg' (universe)
 Command 'tbl' from package 'groff-base' (main)
 Command 'tc' from package 'iproute2' (main)
 Command 'cl' from package 'cl-launch' (universe)
 Command 'ccl' from package 'cclive' (universe)
 Command 'ecl' from package 'ecl' (universe)
tcl: command not found

和

romano@pern:~$ LANGUAGE=it:en tcl
Comando "tcl" non trovato. Forse si intendeva:
 Comando "ncl" dal pacchetto "ncl-ncarg" (universe)
 Comando "ecl" dal pacchetto "ecl" (universe)
 Comando "tel" dal pacchetto "orville-write" (universe)
 Comando "ccl" dal pacchetto "cclive" (universe)
 Comando "tdl" dal pacchetto "tdl" (universe)
 Comando "mcl" dal pacchetto "mcl" (universe)
 Comando "tcc" dal pacchetto "tcc" (universe)
 Comando "tc" dal pacchetto "iproute2" (main)
 Comando "tbl" dal pacchetto "groff-base" (main)
 Comando "cl" dal pacchetto "cl-launch" (universe)
 Comando "tcm" dal pacchetto "tcm" (universe)
 Comando "gcl" dal pacchetto "gcl" (universe)
 Comando "tcal" dal pacchetto "gcal" (universe)
 Comando "tjl" dal pacchetto "pvm-examples" (universe)
 Comando "tcs" dal pacchetto "tcs" (universe)
tcl: comando non trovato