A error after rvm update --head

Ruby Version Manager Error

$ rvm 1.8.7-p248
-bash: /match: No such file or directory
-bash: /match: No such file or directory
-bash: /match: No such file or directory
-bash: /match: No such file or directory
-bash: /match: No such file or directory
-bash: /log: No such file or directory


$ rvm list
-bash: /list: No such file or directory

$ rvm --help
-bash: /help: No such file or directory

$ rvm_scripts_path="$HOME/.rvm/scripts"

$ rvm 1.8.7-p248

$ irb
-bash: /Users/tomas/.rvm/rubies/ruby-1.8.7-p248/bin/irb: /Users/tomas/.rvm/ruby-1.8.7-p248/bin/ruby: bad interpreter: No such file or directory

$ cat ~/.rvmrc
rvm_archflags="-arch x86_64"

$ rvm debug
-bash: /info: No such file or directory

[tomas] ~
$ ls ~/.rvm/environments/
ruby-1.8.7-p248

$ uname -a
Darwin MacBook-de-Tomas-Destefi.local 10.3.0 Darwin Kernel Version 10.3.0: Fri Feb 26 11:58:09 PST 2010; root:xnu-1504.3.12~1/RELEASE_I386 i386