I know very well that to override locale settings we can use
LC_ALL prepended to the command one wants to run. I also know
C uses default locale of a system. But what does
C stand for ?
C stands for the C programming language. It is a synonym for the
The POSIX locale can be specified by assigning to the appropriate environment variables the values "C" or "POSIX".
The only solid hint I could was from some Slackware documentation written by the great Patrick Volkerding. In the file
/etc/profile.d/lang.sh he has made the following comment:
# 'C' is the old Slackware (and UNIX) default, which is 127-bit ASCII # with a charmap setting of ANSI_X3.4-1968. These days, it's better to # use en_US.UTF-8 or another modern $LANG setting (or at least en_US) # to support extended character sets. #export LANG=C
Without giving away what the 'C' actually stands for, but I would guess that 'C' is an alias for this very lowest and safest level of locale.... Not very satisfactory I know :(.
To see this comment for yourself in the Slackware package try the following:
wget http://slackware.osuosl.org/slackware-14.2/source/a/etc/_etc.tar.gz tar -zxvf _etc.tar.gz etc/profile.d/lang.sh.new --strip-components 2
And then open the file
lang.sh.new with your favoured text editor...