标题: linux下tr的一个问题 [打印本页] 作者: 侯上校 时间: 2011-12-19 08:33 标题: linux下tr的一个问题 #!/bin/sh
echo -n "Can you write device drivers?"
read answer
answer='echo $answer | tr [a-z][A-Z]'
if [ "$answer" = Y ]
then
echo "Wow , you must be very skilled"
else
echo "Neither can I, I'm just an example shell script"
fi