Environment partially in english on a french Ubuntu14.04 version

Question

For an unknown reason a part of my Ubuntu 14.04 LTS French version has moved to English, specifically commands like "Show copy Dialog" in Nautilus.

I've double checked that languages packages are properly installed in Ubuntu parameters and they are.

Any idea ?

Laurent06000

PS 1: as asked I had the results of land printenv

locale -a gives

locale -a C C.UTF-8 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 fr_BE.utf8 fr_CA.utf8 fr_CH.utf8 fr_FR.utf8 fr_LU.utf8 POSIX

printenv gives :

printenv XDG_VTNR=7 XDG_SESSION_ID=c1 CLUTTER_IM_MODULE=xim SELINUX_INIT=YES XDG_GREETER_DATA_DIR=/var/lib/lightdm-data/laurent06000 SESSION=ubuntu GPG_AGENT_INFO=/run/user/1000/keyring-NBoFPL/gpg:0:1 SHELL=/bin/bash XDG_MENU_PREFIX=gnome- VTE_VERSION=3409 TERM=xterm WINDOWID=106954764 UPSTART_SESSION=unix:abstract=/com/ubuntu/upstart-session/1000/1206 GNOME_KEYRING_CONTROL=/run/user/1000/keyring-NBoFPL GTK_MODULES=overlay-scrollbar:unity-gtk-module USER=laurent06000 LS_COLORS=rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:.tar=01;31:.tgz=01;31:.arj=01;31:.taz=01;31:.lzh=01;31:.lzma=01;31:.tlz=01;31:.txz=01;31:.zip=01;31:.z=01;31:.Z=01;31:.dz=01;31:.gz=01;31:.lz=01;31:.xz=01;31:.bz2=01;31:.bz=01;31:.tbz=01;31:.tbz2=01;31:.tz=01;31:.deb=01;31:.rpm=01;31:.jar=01;31:.war=01;31:.ear=01;31:.sar=01;31:.rar=01;31:.ace=01;31:.zoo=01;31:.cpio=01;31:.7z=01;31:.rz=01;31:.jpg=01;35:.jpeg=01;35:.gif=01;35:.bmp=01;35:.pbm=01;35:.pgm=01;35:.ppm=01;35:.tga=01;35:.xbm=01;35:.xpm=01;35:.tif=01;35:.tiff=01;35:.png=01;35:.svg=01;35:.svgz=01;35:.mng=01;35:.pcx=01;35:.mov=01;35:.mpg=01;35:.mpeg=01;35:.m2v=01;35:.mkv=01;35:.webm=01;35:.ogm=01;35:.mp4=01;35:.m4v=01;35:.mp4v=01;35:.vob=01;35:.qt=01;35:.nuv=01;35:.wmv=01;35:.asf=01;35:.rm=01;35:.rmvb=01;35:.flc=01;35:.avi=01;35:.fli=01;35:.flv=01;35:.gl=01;35:.dl=01;35:.xcf=01;35:.xwd=01;35:.yuv=01;35:.cgm=01;35:.emf=01;35:.axv=01;35:.anx=01;35:.ogv=01;35:.ogx=01;35:.aac=00;36:.au=00;36:.flac=00;36:.mid=00;36:.midi=00;36:.mka=00;36:.mp3=00;36:.mpc=00;36:.ogg=00;36:.ra=00;36:.wav=00;36:.axa=00;36:.oga=00;36:.spx=00;36:.xspf=00;36: XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session0 XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0 SSH_AUTH_SOCK=/run/user/1000/keyring-NBoFPL/ssh SESSION_MANAGER=local/PC-DE-LDP:@/tmp/.ICE-unix/1373,unix/PC-DE-LDP:/tmp/.ICE-unix/1373 DEFAULTS_PATH=/usr/share/gconf/ubuntu.default.path XDG_CONFIG_DIRS=/etc/xdg/xdg-ubuntu:/usr/share/upstart/xdg:/etc/xdg PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games DESKTOP_SESSION=ubuntu QT_IM_MODULE=ibus QT_QPA_PLATFORMTHEME=appmenu-qt5 JOB=dbus PWD=/home/laurent06000 XMODIFIERS=@im=ibus GNOME_KEYRING_PID= LANG=fr_FR.UTF-8 GDM_LANG=fr_FR MANDATORY_PATH=/usr/share/gconf/ubuntu.mandatory.path IM_CONFIG_PHASE=1 COMPIZ_CONFIG_PROFILE=ubuntu GDMSESSION=ubuntu SESSIONTYPE=gnome-session XDG_SEAT=seat0 HOME=/home/laurent06000 SHLVL=1 LANGUAGE=fr_FR GNOME_DESKTOP_SESSION_ID=this-is-deprecated LOGNAME=laurent06000 XDG_DATA_DIRS=/usr/share/ubuntu:/usr/share/gnome:/usr/local/share/:/usr/share/ QT4_IM_MODULE=xim DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-dXIW7UzRJs LESSOPEN=| /usr/bin/lesspipe %s INSTANCE= TEXTDOMAIN=im-config XDG_RUNTIME_DIR=/run/user/1000 DISPLAY=:0 XDG_CURRENT_DESKTOP=Unity GTK_IM_MODULE=ibus LESSCLOSE=/usr/bin/lesspipe %s %s TEXTDOMAINDIR=/usr/share/locale/ COLORTERM=gnome-terminal XAUTHORITY=/home/laurent06000/.Xauthority _=/usr/bin/printenv

Answer 1

If it's just occasional strings which appear in English, the explanation may simply be that those particular strings were not translated into French in 14.04.