diff --git a/dot.bashrc b/dot.bashrc
index 8724488209b41cce6b46005b6aa29ea8e7229c19..c402b1fae2f3e8ed3e504358c7083d92c18e3378 100644
--- a/dot.bashrc
+++ b/dot.bashrc
@@ -16,6 +16,12 @@ alias .......=' cd ../../../../../..'
 alias ........=' cd ../../../../../../..'
 alias .........=' cd ../../../../../../../..'
 
+export PAGER=less
+export EDITOR=vim
+export VISUAL=vim
+
+export LC_ALL=C
+
 # Disable systemctl's auto-paging feature:
 export SYSTEMD_PAGER=
 
diff --git a/dot.tcshrc b/dot.tcshrc
index 6bd9ed7eb4fa43c93ac3b7a4c2019b5b53d63a68..29f2a80e97298f9c21a79e9d06f67540628958c2 100644
--- a/dot.tcshrc
+++ b/dot.tcshrc
@@ -17,6 +17,8 @@ setenv PAGER less
 setenv EDITOR vim
 setenv VISUAL less
 
+setenv LC_ALL=C
+
 # bind keypad keys for console, vt100, vt102, xterm
 bindkey "\e[1~" beginning-of-line  # Home
 bindkey "\e[2~" overwrite-mode     # Ins
diff --git a/dot.zshenv b/dot.zshenv
index af3d9e7791aa57d55359695c3e4610afb0fd3c5d..942b500c98c7c7f842f3eedbe75dbc1e5aa78900 100644
--- a/dot.zshenv
+++ b/dot.zshenv
@@ -15,6 +15,8 @@ export PAGER=less
 export EDITOR=vim
 export VISUAL=vim
 
+export LC_ALL=C
+
 # Disable systemctl's auto-paging feature:
 export SYSTEMD_PAGER=