/etc/profile.d/ directory on systems I use.
===== yky.sh
# aliases i like to use
# 031110 yky Created from bashrc
alias h='history'
alias j='jobs -l'
alias l='ls -Fax'
alias ll='ls -laF'
alias d='ll'
alias c='cd ..'
alias md='mkdir'
alias rd='rmdir'
alias mr='more'
alias f='finger'
====
dont forget to chmod 755 it.
yk.