.bashrc：shopt：未找到

剛剛使用 Ubuntu 12.04 配置了一個新的 Rackspace 實例，並從他們的 github 下載了 rbenv 並安裝了它。

執行時出現以下錯誤. ./~bashrc

$ . ~/.bashrc
sh: 18: /home/deployer/.bashrc: shopt: not found
sh: 26: /home/deployer/.bashrc: shopt: not found
sh: 110: /home/deployer/.bashrc: shopt: not found
sh: 28: /etc/bash_completion: [[: not found
sh: 34: /etc/bash_completion: [[: not found
sh: 51: /etc/bash_completion: Bad substitution

這是我的 .bashrc（用於使用者部署程序），我唯一添加的是頂部的 rbenv 位。

$ cat .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 [ -d "${RBENV_ROOT}" ]; then
 export PATH="${RBENV_ROOT}/bin:${PATH}"
 eval "$(rbenv init -)"
fi

# If not running interactively, don't do anything
[ -z "$PS1" ] && return

# 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) 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

# 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 [ -f /etc/bash_completion ] && ! shopt -oq posix; then
   . /etc/bash_completion
fi

更新：

評論中要求的測試：

$ echo $SHELL
/bin/sh
$  /bin/sh -c 'echo $SHELL'
/bin/sh
$ cat /proc/$$/cmdline
sh

您剛剛發布的輸出表明您實際上並沒有執行bash. 這就是為什麼您在採購時遇到錯誤.bashrc。

要解決此問題，您需要檢查您的登錄 shell 以確保它實際上設置為 bash：

chsh -l

將列出可用的 shell，並且

chsh -s /path/to/bash

將您的登錄 shell 更改為 bash。

然後註銷並重新登錄。

shopt是內置的 bash，而不是獨立的執行檔，因此source不起作用。這就是您收到該錯誤的原因。你想達到什麼目的？

引用自：https://serverfault.com/questions/409994