logprn - merge Common-Log Format web logs based on time-stamps
logprn logfile idle-time[:max-wait] command
The logprn program is designed to print new data that is appended to
log files. It will wait until a specified amount of time has elapsed
since the last write to the file before printing the data. It will
print the data by pipeing it to a specified command. The command will
be run by popen(3) so the usual shell commands will operate (whether
this is a bug or a feature is a matter of opinion).
specifies a file to read data from. It should be a regular file
not a pipe, device, or anything else.
0 Never happens, this program will run forever.
1 Bad command-line parameters or couldn’t stat the log file on startup
- couldn’t start the program.
2 File disappeared or became unreadable at run-time.
3 Can’t run the specified command.
This program, its manual page, and the Debian package were written by
Russell Coker <email@example.com>.
Uses popen (3) but I consider this a feature not a bug.