[root@localhost tmp]# alias
alias cp=‘cp -i‘
alias egrep=‘egrep --color=auto‘
alias fgrep=‘fgrep --color=auto‘
alias grep=‘grep --color=auto‘
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‘
[root@localhost tmp]# alias ll=‘ls‘
[root@localhost tmp]# ll
a.sh
mongodb-27017.sock
php-cgi.sock
systemd-private-39ff8a37d82b4360a74c90d75ec2c644-redis.service-J2rFhV
test
[root@localhost tmp]# alias ll="ls -l --color=auto"