????#???????????
????1.????????? #!/bin/bash
????#!/bin/bash //shell ????????
????2.Shell????е???????????????echo?????
????echo Let's me know this will work
????echo "I'll"
????echo -n ?????????????????????????
????3.??Shell???????????????
????echo home=$HOME
????4.???????????????
??????1????????????20?????
??????2???????????Сд
????name="qiangge"
????age=27
????echo "my name is$name??I was$ageyears old"
????5.??????
?????????????????????????????????
????test=`date`
????echo test
????6.??????????????????
????#????????
????>
????#???????
????>>
????#?????????
????<
????7.???
??????????? ??
???????????????????????????????
????8.expr????