-bash:: Mac OSX启动shell时找不到命令

Question

最近我尝试对我的.bash_profile.中的路径进行一些更改
在我尝试用source .bash_profile验证这些更改并得到-bash: : command not found之后，
我还注意到，当我打开shell时，在执行任何命令之前，它已经站在"-bash:: command not found"…
显然，系统也没有考虑到对.bash_profile所做的更改……
请帮助!我想我搞砸了。bash_profile太多，不知道如何修复它…

.bash_profile的内容:

cat .bash_profile
# Finished adapting your PATH environment variable for use with MacPorts.
export PATH=/opt/local/bin:/opt/local/sbin:$PATH
##
# MacPorts Installer addition on 2014-03-24_at_12:05:55: adding an appropriate PATH variable for use with MacPorts.
### Your previous /Users/usrname/.bash_profile file was backed up as /Users/usrname/.bash_profile.macports-saved_2014-03-24_at_12:05:55
##export PATH="/Users/usrname/anaconda/bin:$PATH"
# added by Anaconda 1.9.1 installer
##Additional binary folders
export PATH=/Users/usrname/TreeTagger/cmd:$PATH
export PATH= /Users/usrname/TreeTagger/bin:$PATH
export UIMA_HOME= $/Users/usrname/apache-uima
export PATH=$PATH:$UIMA_HOME/bin
export HEIDELTIME_HOME='/Users/usrname/Downloads/heideltime-kit/'
export TREETAGGER_HOME='/Users/usrname/TreeTagger'
source $HEIDELTIME_HOME/metadata/setenv

.bash_profile的更新内容:

cat .bash_profile
# Finished adapting your PATH environment variable for use with MacPorts.
export PATH=/opt/local/bin:/opt/local/sbin:$PATH
##
# MacPorts Installer addition on 2014-03-24_at_12:05:55: adding an appropriate PATH variable for use with MacPorts.
### Your previous /Users/usrname/.bash_profile file was backed up as /Users/usrname/.bash_profile.macports-saved_2014-03-24_at_12:05:55
##export PATH="/Users/usrname/anaconda/bin:$PATH"
# added by Anaconda 1.9.1 installer
##Additional binary folders
export PATH="/Users/usrname/TreeTagger/cmd:$PATH"
export PATH="/Users/usrname/TreeTagger/bin:$PATH"
export UIMA_HOME="/Users/usrname/apache-uima"
export PATH=$PATH:$UIMA_HOME/bin
export HEIDELTIME_HOME="/Users/usrname/Downloads/heideltime-kit/"
export TREETAGGER_HOME="/Users/usrname/TreeTagger"
source $HEIDELTIME_HOME/metadata/setenv

最后一个引号后的完整shell输出:

Last login: Thu Jul 31 19:07:05 on ttys000
-bash: : command not found
usr:~ usrname$ cat .bash_profile
# Finished adapting your PATH environment variable for use with MacPorts.
export PATH="/opt/local/bin:/opt/local/sbin:$PATH"
##
# MacPorts Installer addition on 2014-03-24_at_12:05:55: adding an appropriate PATH variable for use with MacPorts.
### Your previous /Users/usrname/.bash_profile file was backed up as /Users/usrname/.bash_profile.macports-saved_2014-03-24_at_12:05:55
##export PATH="/Users/usrname/anaconda/bin:$PATH"
# added by Anaconda 1.9.1 installer
##Additional binary folders
export PATH="/Users/usrname/TreeTagger/cmd:$PATH"
export PATH="/Users/usrname/TreeTagger/bin:$PATH"
export UIMA_HOME="/Users/usrname/apache-uima"
export PATH="$PATH:$UIMA_HOME/bin"
export HEIDELTIME_HOME="/Users/usrname/Downloads/heideltime-kit/"
export TREETAGGER_HOME="/Users/usrname/TreeTagger"
source $HEIDELTIME_HOME/metadata/setenv

usr:~ usrname$ source .bash_profile
-bash: : command not found

使用echo命令编辑:

  cat .bash_profile
# Finished adapting your PATH environment variable for use with MacPorts.
export PATH="/opt/local/bin:/opt/local/sbin:$PATH"
##
# MacPorts Installer addition on 2014-03-24_at_12:05:55: adding an appropriate PATH variable for use with MacPorts.
### Your previous /Users/usrname/.bash_profile file was backed up as /Users/usrname/.bash_profile.macports-saved_2014-03-24_at_12:05:55
##export PATH="/Users/usrname/anaconda/bin:$PATH"
# added by Anaconda 1.9.1 installer
##Additional binary folders
export PATH="/Users/usrname/TreeTagger/cmd:$PATH"
export PATH="/Users/usrname/TreeTagger/bin:$PATH"
export UIMA_HOME="/Users/usrname/apache-uima"
export PATH="$PATH:$UIMA_HOME/bin"
export HEIDELTIME_HOME="/Users/usrname/Downloads/heideltime-kit/"
export TREETAGGER_HOME="/Users/usrname/TreeTagger"
echo before
source $HEIDELTIME_HOME/metadata/setenv
echo after

usr:~ usrname$ source .bash_profile
-bash: : command not found
usr:~ usrname$ echo $PATH
/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/opt/X11/bin

编辑+bash版本:

echo $BASH_VERSION
3.2.51(1)-release
usr:~ usrname$ source ./.bash_profile
-bash: : command not found

在set -x被添加到.bash_profile后编辑+:

usr:~ usrname$ source ./.bash_profile
++ $'16'
-bash: : command not found
++ update_terminal_cwd
++ local 'SEARCH= '
++ local REPLACE=%20
++ local PWD_URL=file://usr.local/Users/usrname
++ printf 'e]7;%sa' file://usr.local/Users/usrname

Answer 1

这一行:

export PATH= /Users/usrname/TreeTagger/bin:$PATH

是问题所在。在变量赋值中，包括export, =周围不能有空格。通过添加空格，它将$PATH设置为空字符串。

改为:

export PATH=/Users/usrname/TreeTagger/bin:$PATH

为安全起见，你应该加上双引号:

export PATH="/Users/usrname/TreeTagger/bin:$PATH"

只是以防$PATH的值中有任何特殊字符。

UIMA_HOME也有同样的问题。

更新:

根据后面的注释，您的.bash_profile中似乎有一个偏离的控制字符。对于set -x，它显示为$'16'。Bash试图将其作为命令名处理，因此找不到它并不奇怪。编辑你的.bash_profile并删除那个字符。

(其他错误无论如何都需要纠正)