ZAP - kill processes by name Typical usages:	zap ximage	zap 'xmovie|xgraph' Zap accepts full pattern matching for the process names Caveat: zap assumes that the FIRST field produced by the	Unix "ps" command is the pid (process identifier) number.	If not, change the number in the awk print statement to	the appropriate field. Author: Jack, 6/95 -- after Kernighan and Pike's zap