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-rw-r--r--bash/bashrc5
-rw-r--r--yash/yashrc5
-rw-r--r--zsh/zshrc5
3 files changed, 15 insertions, 0 deletions
diff --git a/bash/bashrc b/bash/bashrc
index 3070c00c..ca13c4bf 100644
--- a/bash/bashrc
+++ b/bash/bashrc
@@ -9,6 +9,11 @@ esac
# shellcheck disable=SC2128
[ -n "$BASH_VERSINFO" ] && shopt -q restricted_shell && return
+# Clear away all aliases; we do this here rather than in $ENV because the ksh
+# family of shells relies on aliases to implement certain POSIX utilities like
+# fc(1) and type(1)
+unalias -a
+
# If ENV is set, source it to get all the POSIX-compatible interactive stuff;
# we should be able to do this even if we're running a truly ancient Bash
[ -n "$ENV" ] && . "$ENV"
diff --git a/yash/yashrc b/yash/yashrc
index a731c80b..c2b2df26 100644
--- a/yash/yashrc
+++ b/yash/yashrc
@@ -1,3 +1,8 @@
+# Clear away all aliases; we do this here rather than in $ENV because the ksh
+# family of shells relies on aliases to implement certain POSIX utilities like
+# fc(1) and type(1)
+unalias -a
+
# Load POSIX interactive shell startup files, because Yash won't do it if not
# invoked as sh(1)
[ -e "$ENV" ] && . "$ENV"
diff --git a/zsh/zshrc b/zsh/zshrc
index a97c0a73..68f8ffc7 100644
--- a/zsh/zshrc
+++ b/zsh/zshrc
@@ -1,6 +1,11 @@
# Emacs keybindings even if EDITOR is vi(1)
bindkey -e
+# Clear away all aliases; we do this here rather than in $ENV because the ksh
+# family of shells relies on aliases to implement certain POSIX utilities like
+# fc(1) and type(1)
+unalias -a
+
# If ENV is set, source it to get all the POSIX-compatible interactive stuff
[[ -n $ENV ]] && source "$ENV"