## Command history configuration
if [ -z "$HISTFILE" ]; then
    HISTFILE=$HOME/.zsh_history
fi
if [ -z "$HISTSIZE" ]; then
    HISTSIZE=10000
fi
if [ -z "$SAVEHIST" ]; then
    SAVEHIST=10000
fi

setopt extended_history
setopt hist_expire_dups_first
setopt hist_ignore_dups # ignore duplication command history list
setopt hist_ignore_space
setopt hist_verify
setopt inc_append_history
setopt share_history # share command history data