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Top Forums Shell Programming and Scripting Piping the "script" command through the logger command. Post 302852841 by Corona688 on Thursday 12th of September 2013 01:12:19 PM
Old 09-12-2013
This is a tricky one, because each chain of pipes creates more possibilities for buffering and stalling.

Since you're creating a file anyway, why not tail it, to feed it into logger instead of putting a pipe in the way?

Code:
: > $LOGFILE.log
( tail -f $LOGFILE.log | /bin/logger ) &

trap "kill $!" EXIT # Kill the logger subshell on exit

${SCRIPT} -a -f -q ${LOGFILE}.log


I'm not sure that feeding raw, binary keystrokes into logger is a terrific idea, though. A lot of what script saves, only looks nice when dumped to a shell.

Also, instead of echo "" > /dev/null as a do-nothing stub, you can use the easier and simpler :
 

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logger(1B)					     SunOS/BSD Compatibility Package Commands						logger(1B)

NAME
logger - add entries to the system log SYNOPSIS
/usr/ucb/logger [-f filename] [-i] [-p priority] [-t tag] mm [message]... DESCRIPTION
The logger utility provides a method for adding one-line entries to the system log file from the command line. One or more message argu- ments can be given on the command line, in which case each is logged immediately. If message is unspecified, either the file indicated with -f or the standard input is added to the log. Otherwise, a filename can be specified, in which case each line in the file is logged. If neither is specified, logger reads and logs messages on a line-by-line basis from the standard input. OPTIONS
The following options are supported: -i Log the process ID of the logger process with each line. -f filename Use the contents of filename as the message to log. -p priority Enter the message with the specified priority. The message priority can be specified numerically, or as a facility.level pair. For example, `-p local3.info' assigns the message priority to the info level in the local3 facility. The default pri- ority is user.notice. -t tag Mark each line added to the log with the specified tag. EXAMPLES
Example 1: Logging a message The command: example% logger System rebooted will log the message `System rebooted' to the facility at priority notice to be treated by syslogd as other messages to the facility notice are. Example 2: Logging messages from a file The command: example% logger -p local0.notice -t HOSTIDM -f /dev/idmc will read from the file /dev/idmc and will log each line in that file as a message with the tag `HOSTIDM' at priority notice to be treated by syslogd as other messages to the facility local0 are. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWscpu | +-----------------------------+-----------------------------+ SEE ALSO
syslogd(1M), syslog(3C), attributes(5) SunOS 5.10 14 Sep 1992 logger(1B)
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