Donde configurar un alias en Mandriva linux

Puedes hacerlo en dos archivos globalmente para todo el sistema en el archivo /etc/profile.d/alias.sh y para hacerlo solo para tu usuario en el ~/.bashrc asi:

/etc/profile.d/alias.sh

#!/bin/sh
# Linux-Mandrake configuration: Chmouel Boudjnah 
#
# Common Aliases for a system.
#
# The Semantic is :
#	If exist a ~/.alias and the user hasn't specified a
#	LOAD_SYSTEM_ALIAS variables then don't do any system aliases
#	If there is no ~/.alias but the user has specified a
#	IGNORE_SYSTEM_ALIASES then don't do any system aliases.

[ -f ~/.alias ] && [ -z $LOAD_SYSTEM_ALIASES ] && return 0
[ -n "$IGNORE_SYSTEM_ALIASES" ] && return 0

if [ -f ~/.dir_colors ]; then
	eval `dircolors --sh ~/.dir_colors`
else
	eval `dircolors --sh /etc/DIR_COLORS`
fi

# Don't define aliases in plain Bourne shell
[ -n "${BASH_VERSION}${KSH_VERSION}${ZSH_VERSION}" ] || return 0

# default ls options
LS_OPTIONS="-F"

# this should be removed once the bug with ls and multibytes locales is fixed
[ -r /etc/profile.d/lang.sh ] && . /etc/profile.d/lang.sh
case "$LC_ALL$LC_CTYPE" in
    ja*|ko*|zh*) LS_OPTIONS="$LS_OPTIONS --show-control-chars" ;;
    *) if [ "`locale charmap`" = "UTF-8" ]; then
        LS_OPTIONS="$LS_OPTIONS --show-control-chars"
       fi ;;
esac

# emacs doesn't support color
if [ $TERM != "emacs" ];then
    LS_OPTIONS="$LS_OPTIONS --color=auto"
fi

alias ls="ls $LS_OPTIONS"

alias d="ls"                                                  
alias l="ls"       		# classical listing.
alias ll="ls -l"   		# List detailled. 
alias la='ls -a'     	# List all.               
alias lsd="ls -d */"		# List only the directory.
alias cd..="cd .."		
alias s="cd .."
alias p="cd -"

alias md="mkdir"
alias rd="rmdir"
alias cp="cp -i"
alias mv="mv -i"
alias rm="rm -i"

alias grep="grep --color"      # colored grep by default

# Size of a directory (by default Human Readable).
alias du='du -h'                              
                                              
# Size of a disk (by default Human Readable). 
# and don't probe supermount
alias df='df -h -x supermount'

~/.bashrc

# .bashrc

# User specific aliases and functions

alias mupen="/home/dalfa/programas/mupen64-0.5/mupen64"
alias mv="mv -vi"
alias cp="cp -vi"
alias dvd="mount -v /mnt/cdrom"
alias mount="mount -v"
alias umount="umount -v"
alias azureus="/home/dalfa/programas/azureus/azureus"
alias e17="startx /usr/bin/starte17"
alias totem="/usr/bin/totem --enqueue"
alias firefox2="/home/dalfa/programas/firefox/firefox"

# Source global definitions
if [ -f /etc/bashrc ]; then
	. /etc/bashrc
fi



# enable programmable completion features
if [ -f /etc/bash_completion ]; then
	. /etc/bash_completion
fi