??????record.session????????????????????????????????????????
????Script started on Sun 04 Jan 2015 05:13:46 AM PST
????$ echo test begin
????test begin
????$ echo test start
????test start
????$ echo test end
????test end
????$ exit
????exit
????Script done on Sun 04 Jan 2015 05:14:05 AM PST
???????????????????????????????Ч??????????????????ж???????????????Щ??????????????????Щ?????????????????????????????
???????????????????????????????????????????????????????????????????????????????????е??????
???????????????????????????????
??????????????????????????????????????乲??????????????????????session????????Щ????????????????
???????????????session????????????session1??session2??????????????????????????
????session1 ????fifo???????
????>mkfifo fifo.log
????session2 ??????????
????>cat fifo.log
????session1 ?????????
????>script -f fifo.log
????Script started?? file is fifo.log
????$ ls   --????????????κβ?????session2?ж????????