execline
Software
skarnet.org
 The getpid program 
getpid stores its process ID in a given environment variable,
then executes a program.
 Interface 
     getpid [ -E | -e ] [ -P | -p ] var prog...
getpid stores its PID in the var variable, then
execs into prog with its arguments.
 Options 
 -  -e : no autoimport. This is the default. 
-  -E : autoimport. Instead of exec'ing into
prog..., exec into importas -ui var var
prog.... This substitutes var into the command
line instead of putting it into the environment. 
-  -p : get the pid of the current process. This is the default. 
-  -P : use getpid's parent pid instead. 
 Notes 
 -  var must be given without a dollar! 
-  var must not contain =.