chompVARIABLEchompLISTchomp
This is a slightly safer version of 
chop
 (see below) in that it removes only any line ending corresponding to the current value of 
$/
, and not just any last character.  Unlike 
chop
, 
chomp
 returns the number of characters deleted. If 
$/
 is empty (in paragraph mode), 
chomp
 removes all trailing newlines from the selected string (or strings, if chomping a 
LIST
).