CentOS - May 2016 - Looking for location of some specific settings in CentOS 6.x

Hello,

I have several virtual machines, all with CentOS 6.x and one so called 
virtual server at a web hoster

my virtual machines (VMware) were all installed manually using the .iso, 
some exist longer and therefore
were originally a CentOS 6.3, some are newer and wer originally a CentOS 
6.6;
and this virtual server has been installed using a preconfigured image 
from the web hoster;

on all this virtual machines and the virtual server several 'yum update'
brought them to same release, not CentOS 6.7,
as I havn't updated to 6.8 yet;

at the virtual server I find this

export LS_OPTIONS="--human --color=always"
alias ls='ls $LS_OPTIONS'
alias ll='ls $LS_OPTIONS -l'
alias l='ls $LS_OPTIONS -Al'

in /root/.bashrc

on my virtual machines I can't find this settings; nor doesn't
'env' show a
variable 'LS_OPTIONS'
but 'alias' shows this:

alias cp='cp -i'
alias l.='ls -d .* --color=auto'
alias ll='ls -l --color=auto'
alias ls='ls --color=auto'
alias mv='mv -i'
alias rm='rm -i'
alias which='alias | /usr/bin/which --tty-only --read-alias --show-dot 
--show-tilde'

the aliases for cp, mv, rm are explained by the first part of 
/root/.bashrc (not quoted above)

alias rm='rm -i'
alias cp='cp -i'
alias mv='mv -i'

when I comment out the above shown part of /root/.bashrc on the virtual 
server
'alias' shows the same as on my virtual machines (VMware)

but where are these aliases

alias l.='ls -d .* --color=auto'
alias ll='ls -l --color=auto'
alias ls='ls --color=auto'
alias which='alias | /usr/bin/which --tty-only --read-alias --show-dot 
--show-tilde'

set?

Thanks for help,
Walter

Am 28.05.2016 um 19:23 schrieb Walter H.:
> Hello,
[ ... ]
> but where are these aliases
>
> alias l.='ls -d .* --color=auto'
> alias ll='ls -l --color=auto'
> alias ls='ls --color=auto'
> alias which='alias | /usr/bin/which --tty-only --read-alias --show-dot
> --show-tilde'
>
> set?
# grep alias /etc/profile.d/*
/etc/profile.d/colorls.csh:alias ll 'ls -l'
/etc/profile.d/colorls.csh:alias l. 'ls -d .*'
/etc/profile.d/colorls.csh:alias ll 'ls -l --color=auto'
/etc/profile.d/colorls.csh:alias l. 'ls -d .* --color=auto'
/etc/profile.d/colorls.csh:alias ls 'ls --color=auto'
/etc/profile.d/colorls.sh:  alias ll='ls -l' 2>/dev/null
/etc/profile.d/colorls.sh:  alias l.='ls -d .*' 2>/dev/null
/etc/profile.d/colorls.sh:alias ll='ls -l --color=auto' 2>/dev/null
/etc/profile.d/colorls.sh:alias l.='ls -d .* --color=auto'
2>/dev/null
/etc/profile.d/colorls.sh:alias ls='ls --color=auto' 2>/dev/null
/etc/profile.d/vim.csh:        alias vi vim
/etc/profile.d/vim.sh:  # for bash and zsh, only if no alias is already set
/etc/profile.d/vim.sh:  alias vi >/dev/null 2>&1 || alias vi=vim
/etc/profile.d/which2.sh:alias which='alias | /usr/bin/which --tty-only 
--read-alias --show-dot --show-tilde'
  	
> Thanks for help,
> Walter

Alexander