runit2

UNIX[1].shell范例精解(第4版)_code

#/bin/bash
# Script is called runit.
# IFS is the internal field separator and defaults to 
# spaces, tabs, and newlines. 
# In this script it is changed to a colon.
names=Tom:Dick:Harry:John
oldifs="$IFS"           # Save the original value of IFS

IFS=":"

for persons in $names
do
	echo  Hi $persons
done

IFS="$oldifs"            # Reset the IFS to old value

set Jill Jane Jolene     # Set positional parameters
for girl in $*
do
	echo Howdy $girl
done