brooks@sundance7.DAB.GE.COM (05/03/90)
At the risk of sounding stupid... After looking at the multitee posting from comp.sources.unix, I'm still not really sure how someone might use it. Anyone have some neat ideas or suggestions? -- Stephen (Steve) M. Brooks | brooks@ge-dab.GE.COM | "Mr. Ranger isn't GE Simulation & Control Systems | ...!mcnc!ge-dab!brooks | gonna like this, P.O. Box 2825, Rm. 4150 | Voice: (904) 239-4855 | Yogi." -- Boo Boo Daytona Beach, FL 32115-2825 | Dial-Comm: 8*620-4855 |
brnstnd@stealth.acf.nyu.edu (05/04/90)
In article <4206@ge-dab.GE.COM> brooks@ge-dab.GE.COM (Stephen M. Brooks) writes: > After looking at the multitee posting from comp.sources.unix, I'm still > not really sure how someone might use it. Anyone have some neat ideas or > suggestions? Well, it's used in several spots in the authutil package, where input 0 has to be piped to socket 6 while socket 6 is piped to socket 1. (That's multitee 0:6 6:1.) For this you could use a multiple cat; multitee's only real advantage is that it's just one process. cat fails when you're sending an input to several output pipes. tee can only solve a restricted version of this, and it can block waiting for one output when it should be sending through the other. The situation can get really hairy when the other end of the pipe doesn't know how to handle nonblocking I/O; there's no per-process fcntl(). multitee neatly solves all these problems. One really convenient use of multitee is for setting up truly invisible temporary files in shell scripts. Look at the trivial inews shell script inside authutil, for example. Other applications will pop up, I'm sure. What's the use of tee? ---Dan