Commits on Dec 8, 2011

1. Convert 'echo' to 'echo -e' to enable color escape codes …

   Not sure how this wasn't noticed before now, but I suppose it's
   possible that some shells come with a version of 'echo' where the
   '-e' flag is considered active by default. However, on my system
   (CentOS 6.0, bash 4.1.2) doing any sort of command that echoes color
   codes prints garbage like the following:
   
       [user@machine ~]$ n
         \033[32mο\033[0m 0.6.5 \033[90m\033[0m
   
   All this commit does is add the '-e' flag to only those 'echo'
   commands that are using color escape codes. This causes the above
   command to print its output as expected.
   
   I'm not sure if this will break anything on shells that assume '-e'
   implicitly.
   
   For reference, here is the section of the 'echo' man page regarding
   '-e':
   
      -e     enable interpretation of backslash escapes
   
          If -e is in effect, the following sequences are recognized:
   
          \\     backslash
   
          \a     alert (BEL)
   
          \b     backspace
   
          \c     produce no further output
   
          \e     escape
   
          \f     form feed
   
          \n     new line
   
          \r     carriage return
   
          \t     horizontal tab
   
          \v     vertical tab
   
          \0NNN  byte with octal value NNN (1 to 3 digits)
   
          \xHH   byte with hexadecimal value HH (1 to 2 digits)

   

   bstrie committed Dec 8, 2011
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