「笔记」「ubuntu」mint个人shell样式脚本

alias ll='ls -al'

use_color=false

# Set colorful PS1 only on colorful terminals.
# dircolors --print-database uses its own built-in database
# instead of using /etc/DIR_COLORS.  Try to use the external file
# first to take advantage of user additions.  Use internal bash
# globbing instead of external grep binary.
safe_term=${TERM//[^[:alnum:]]/?}   # sanitize TERM
match_lhs=""
[[ -f ~/.dir_colors   ]] && match_lhs="${match_lhs}$(<~/.dir_colors)"
[[ -f /etc/DIR_COLORS ]] && match_lhs="${match_lhs}$(</etc/DIR_COLORS)"
[[ -z ${match_lhs}    ]]
        && type -P dircolors >/dev/null
        && match_lhs=$(dircolors --print-database)
[[ $' '${match_lhs} == *$' '"TERM "${safe_term}* ]] && use_color=true

if ${use_color} ; then
        # Enable colors for ls, etc.  Prefer ~/.dir_colors #64489
        if type -P dircolors >/dev/null ; then
                if [[ -f ~/.dir_colors ]] ; then
                        eval $(dircolors -b ~/.dir_colors)
                elif [[ -f /etc/DIR_COLORS ]] ; then
                        eval $(dircolors -b /etc/DIR_COLORS)
        else
            eval $(dircolors)
                fi
        fi

        if [[ ${EUID} == 0 ]] ; then
                PS1='${debian_chroot:+($debian_chroot)}[33[01;31m]h[33[01;34m] W $[33[00m] '
        else
                PS1='${debian_chroot:+($debian_chroot)}[33[01;32m]u@h[33[01;34m] w $[33[00m] '
        fi

        alias ls='ls --color=auto'
        alias grep='grep --colour=auto'
else
        if [[ ${EUID} == 0 ]] ; then
                # show root@ when we don't have colors
                PS1='u@h W $ '
        else
                PS1='u@h w $ '
        fi
fi