anchor.diff:  
   The format of the PATH environment variable with colon separated values allows you easy to add a new path at the front or end.
   But all other operations(swap, remove) require the help of an editor and some manual moves.
  -pato is my approach to solve this problem.
  +pato is an approach to solve this problem.
   
   All commands that manipulate a PATH variable write the new PATH variable as result to the output stream.
   
   == OPTIONS
   
   -e::
  -read the PATH variable from the current environment
  +Read the PATH variable from the current environment. This is also the default option.
   
   -i::
  -read the PATH variable from the standart input
  +Read the PATH variable from the standart input.
   
   == COMMANDS
   
  
positive.code: == AUTHOR
  
  Written by Alexander Schulz.
   pato(1)
  
negative.code: = pato(1)
  
  == NAME
  