Make socat write to (TCP or UNIX) socket line by line for log gathering [closed]

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I'm trying to merge several log files from multiple hosts. I'm doing a socat -u EXEC:'follow_log_cmd' UNIX-SENDTO:/tmp/socket for each log I want to follow.

On the log gathering machine I'm doing socat -u UNIX-RECV:/tmp/socket -

My problem is that log entries are getting overlapp开发者_开发问答ed sometimes because socat's not writing one line at a time, but instead a buffer at a time.

Is there any way to make it write one line at a time?

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Try using a pseudo terminal to make socat's writing line buffered:

- socat -u EXEC:'follow_log_cmd' UNIX-SENDTO:/tmp/socket
+ socat -u EXEC:'follow_log_cmd',pty,ctty UNIX-SENDTO:/tmp/socket

See also: https://stackoverflow.com/questions/1000674/turn-off-buffering-in-pipe