我怎样才能让 bash 看起来有这样的颜色？
答案1
~/.bashrc在文本编辑器中打开并取消注释行：
#force_color_prompt=yes
成为：
force_color_prompt=yes
保存然后执行source ~/.bashrc
答案2
我想出了这个解决方案：
~/.bashrc在文本编辑器中打开。复制此内容并将其添加到文件末尾
~/.bashrc：PS1='\[\033[1;36m\]\u\[\033[1;31m\]@\[\033[1;32m\]\h:\[\033[1;35m\]\w\[\033[1;31m\]\$\[\033[0m\] '保存文件和源
~/.bashrc：source ~/.bashrc
要查看可用颜色和其他选项的完整列表，请查看以下链接：
答案3
一个更“通用”的版本应该适用于不同的环境：
（取决于 terminfo）
将其插入到您的$HOME/.bashrc：
function fgtab {
echo "tput setf/setb - Foreground/Background table"
for f in {0..7}; do
for b in {0..7}; do
echo -en "$(tput setf $f)$(tput setb $b) $f/$b "
done
echo -e "$(tput sgr 0)"
done
}
# The prompt in a somewhat Terminal -type independent manner:
cname="$(tput setf 3)"
csgn="$(tput setf 4)"
chost="$(tput setf 2)"
cw="$(tput setf 6)"
crst="$(tput sgr 0)"
PS1="\[${cname}\]\u\[${csgn}\]@\[${chost}\]\h:\[${cw}\]\w\[${csgn}\]\$\[${crst}\] "
然后执行source ~/.bashrc。
之后，fgtab将显示一个带有数字的颜色表。这些数字代表tput setf n和，tput setb n其中“n”是数字，“f”代表“前景”颜色，“b”代表“背景”颜色。
tput sgr 0将前景色和背景色重置为默认值。
正如您所看到的，更改提示使用的颜色变得非常容易（只需$HOME/.bashrc根据需要编辑相同的数字）。
如果希望获得带有背景 n 的提示，请添加$(tput setb n)in 。$cname
答案4
如果您安装的是最小版 Ubuntu，则不会获得包含颜色值和其他一些内容的默认 .bashrc。这是您可以使用的默认 .bashrc。
# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples
# If not running interactively, don't do anything
case $- in
*i*) ;;
*) return;;
esac
# don't put duplicate lines or lines starting with space in the history.
# See bash(1) for more options
HISTCONTROL=ignoreboth
# append to the history file, don't overwrite it
shopt -s histappend
# for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
HISTSIZE=1000
HISTFILESIZE=2000
# check the window size after each command and, if necessary,
# update the values of LINES and COLUMNS.
shopt -s checkwinsize
# If set, the pattern "**" used in a pathname expansion context will
# match all files and zero or more directories and subdirectories.
#shopt -s globstar
# make less more friendly for non-text input files, see lesspipe(1)
[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"
# set variable identifying the chroot you work in (used in the prompt below)
if [ -z "${debian_chroot:-}" ] && [ -r /etc/debian_chroot ]; then
debian_chroot=$(cat /etc/debian_chroot)
fi
# set a fancy prompt (non-color, unless we know we "want" color)
case "$TERM" in
xterm-color|*-256color) color_prompt=yes;;
esac
# uncomment for a colored prompt, if the terminal has the capability; turned
# off by default to not distract the user: the focus in a terminal window
# should be on the output of commands, not on the prompt
#force_color_prompt=yes
if [ -n "$force_color_prompt" ]; then
if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
# We have color support; assume it's compliant with Ecma-48
# (ISO/IEC-6429). (Lack of such support is extremely rare, and such
# a case would tend to support setf rather than setaf.)
color_prompt=yes
else
color_prompt=
fi
fi
if [ "$color_prompt" = yes ]; then
PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
else
PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
fi
unset color_prompt force_color_prompt
# If this is an xterm set the title to user@host:dir
case "$TERM" in
xterm*|rxvt*)
PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1"
;;
*)
;;
esac
# enable color support of ls and also add handy aliases
if [ -x /usr/bin/dircolors ]; then
test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
alias ls='ls --color=auto'
#alias dir='dir --color=auto'
#alias vdir='vdir --color=auto'
alias grep='grep --color=auto'
alias fgrep='fgrep --color=auto'
alias egrep='egrep --color=auto'
fi
# colored GCC warnings and errors
#export GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01'
# some more ls aliases
alias ll='ls -alF'
alias la='ls -A'
alias l='ls -CF'
# Add an "alert" alias for long running commands. Use like so:
# sleep 10; alert
alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"'
# Alias definitions.
# You may want to put all your additions into a separate file like
# ~/.bash_aliases, instead of adding them here directly.
# See /usr/share/doc/bash-doc/examples in the bash-doc package.
if [ -f ~/.bash_aliases ]; then
. ~/.bash_aliases
fi
# enable programmable completion features (you don't need to enable
# this, if it's already enabled in /etc/bash.bashrc and /etc/profile
# sources /etc/bash.bashrc).
if ! shopt -oq posix; then
if [ -f /usr/share/bash-completion/bash_completion ]; then
. /usr/share/bash-completion/bash_completion
elif [ -f /etc/bash_completion ]; then
. /etc/bash_completion
fi
fi