/usr/bin/env bad interpreter

问题:

Trying to get Amazon's EC2 command line tools to work. This is what my .bash_profile looks like. I get the error: /users/zmjones/.ec2/bin/ec2-add-keypair: /usr/bin/env: bad interpreter: Operation not permitted

PATH=/usr/bin:/bin:/usr/sbin:/sbin:/opt/local/bin:$PATH PATH=/opt/local/sbin:/usr/local/bin:/usr/x11/bin:/usr/texbin:$PATH PATH=/usr/local/texlive/2011/bin/x86_64-darwin:$PATH PATH=/Library/Frameworks/EPD64.framework/Versions/Current/bin:$PATH EC2_HOME=~/.ec2 PATH=$PATH:$EC2_HOME/bin EC2_PRIVATE_KEY=`ls $EC2_HOME/pk-*.pem` EC2_CERT=`ls $EC2_HOME/cert-*.pem` JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Home/  export PATH 

Does anybody see anything wrong with this? I am not sure what I doing wrong.

Output of ls -l /usr/bin/env

-r-xr-xr-x  1 root  wheel  34720 Sep  8  2011 /usr/bin/env zmjones-mbp:.ec2 zmjones$ /usr/bin/env TERM_PROGRAM=iTerm.app TERM=xterm SHELL=/bin/bash TMPDIR=/var/folders/x3/vrw5029d1rj9xblj8bmxl0m00000gn/T/  Apple_PubSub_Socket_Render=/tmp/launch-91y0bp/Render OLDPWD=/Users/zmjones USER=zmjones COMMAND_MODE=unix2003 SSH_AUTH_SOCK=/tmp/launch-H3JJsl/Listeners __CF_USER_TEXT_ENCODING=0x1F5:0:0 Apple_Ubiquity_Message=/tmp/launch-n2bT2X/Apple_Ubiquity_Message PATH=/users/zmjones/.ec2/bin:/Library/Frameworks/EPD64.framework/Versions/Current/bin:/usr/local/texlive/2011/bin/x86_64-darwin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/local/bin:/opt/local/sbin:/usr/local/bin:/usr/x11/bin:/usr/texbn PWD=/Users/zmjones/.ec2  JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Home/ LANG=en_US.UTF-8 ITERM_PROFILE=Default SHLVL=1 HOME=/Users/zmjones ITERM_SESSION_ID=w0t0p0 LOGNAME=zmjones EC2_PRIVATE_KEY=pk-mykey.pem DISPLAY=/tmp/launch-6kkP5t/org.x:0 EC2_CERT=cert-mycert.pem  _=/usr/bin/env 

Partial solution: tr -d '\r' < /users/zmjones/.ec2/bin/ec2-add-keypair > /users/zmjones/.ec2/bin/ec2-add-keypair

This seems to allow the commands to execute, but they now don't work. For example, I downloaded a new copy of the ec2 api tools, put them in ~/.ec2 tried ec2-describe-images -o amazon and got the bad interpreter error. I renamed ec2-describe-images to ec2-describe-images.bak ran the tr command listed above and tried it again. I then receive a permission denied error. When I run it with sudo it tells me that EC2_HOME isn't set, but echo $EC2_HOME indicates that it is. I ran chmod +x ec2-describe-images and now I am back to the same bad interepreter error.

回答1:

/users/zmjones/.ec2/bin/ec2-add-keypair has DOS line-endings.

To fix:

mv /users/zmjones/.ec2/bin/ec2-add-keypair /users/zmjones/.ec2/bin/ec2-add-keypair.bak tr -d '\r' < /users/zmjones/.ec2/bin/ec2-add-keypair.bak > /users/zmjones/.ec2/bin/ec2-add-keypair 

回答2:

This happened to me on Windows because I had the wrong header in my bash files. I had #!/usr/bin/bash instead of #!/usr/bin/env bash which is the portable version.

回答3:

I got the exactly the same problem.

The CAUSE of the problem is the "unarchiver tool".

I've installed a third party unarchiver tool. It might change the line-endings of the files during the unzipping process.

After I realized this, I deleted this tool and re-unziped the EC2 zip ball using the native unzip tool. And the problem was solved.

Hope this might be useful for you guys with the same problem.

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