example10.22

来自「UNIX+shell范例精解（第4版）代码」· 22 代码 · 共 6 行

#!/bin/csh -f
if  { ( who | grep $1 >& /dev/null ) } then
	echo $1 is logged on and running:        
	ps -ef | grep "^ *$1"       # ps -aux for BSD
endif