pipefrom.sample

这是一个同样来自贝尔实验室的和UNIX有着渊源的操作系统, 其简洁的设计和实现易于我们学习和理解

#!/bin/rc

rfork e
TMP=/tmp/myupassend.$pid

# collect upas/send options
options=()
while (! ~ $#* 0 && ~ $1 -*) {
	options=($options $1);
	shift
}

# collect addresses and add them to my patterns
dests=()
while (! ~ $#* 0) {
	dests=($dests $1);
	shift
}
echo $dests > $TMP
upas/list add /mail/box/$user/_pattern $TMP >[2] /dev/null
rm $TMP

# send mail
upas/send $options $dests