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Shell Programming and Scripting
Pause for response from the log file
Post 302250839 by gxdanh on Friday 24th of October 2008 11:52:31 AM
10-24-2008
hello everyone,
I am able to go further with getline from exact terminal device.
From my UNIX prompt, my terminal device is /dev/pts/26.
$ > tty
/dev/pts/26
$ >
So, I changed the getline command as below:
tail -f log.file |nawk '
{print $0}
$0 ~ /error/ {
print "Error found. Press ENTER to acknowledge."
getline i < "/dev/pts/26"
}
$0 ~ /aborted/ {
print "Error found. Press ENTER to acknowledge."
getline i < "-"
}
'
It paused and wait for acknowledgement. But ...
How can I get current terminal device into my nawk? each time I log in, I will get diff. terminal device.
I tried the following but all fail:
=1= Begin stmt
BEGIN {dev = ENVIRON["$devID"]}
. . .
getline i < "$dev"
note: I export tty value prior nawk stmt (export devID=`tty`)
=2= and ...
getline i < system ("echo $devID")
getline i < system ("echo `tty`")
getline i < "ENVIRON["$devID"]"
None of them seem to work for me.
when I tried the command below,
getline i < "/dev/tty"
It works most of the time.
Once in a while, it failed too.
Please help.
Thanks
George
I am able to go further with getline from exact terminal device.
From my UNIX prompt, my terminal device is /dev/pts/26.
$ > tty
/dev/pts/26
$ >
So, I changed the getline command as below:
tail -f log.file |nawk '
{print $0}
$0 ~ /error/ {
print "Error found. Press ENTER to acknowledge."
getline i < "/dev/pts/26"
}
$0 ~ /aborted/ {
print "Error found. Press ENTER to acknowledge."
getline i < "-"
}
'
It paused and wait for acknowledgement. But ...
How can I get current terminal device into my nawk? each time I log in, I will get diff. terminal device.
I tried the following but all fail:
=1= Begin stmt
BEGIN {dev = ENVIRON["$devID"]}
. . .
getline i < "$dev"
note: I export tty value prior nawk stmt (export devID=`tty`)
=2= and ...
getline i < system ("echo $devID")
getline i < system ("echo `tty`")
getline i < "ENVIRON["$devID"]"
None of them seem to work for me.
when I tried the command below,
getline i < "/dev/tty"
It works most of the time.
Once in a while, it failed too.Please help.
Thanks
George
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LEARN ABOUT OPENSOLARIS
grablogs.conf
grablogs.conf(4) File Formats grablogs.conf(4) NAME
grablogs.conf - grablogs configuration for libgrablogs.so of the plugins of gnome-system-log file SYNOPSIS
/usr/lib/gnome-system-log/plugins/grablogs.conf DESCRIPTION
The libgrablogs.so is a plugin for gnome-system-log(1), it colloct the log files from the system as many as possible. grablogs.conf is a configuration file that contains a set of lines mixed with sh(1) syntax codes and individual log files. libgrablogs.so will read the file try to get a log files list for gnome-system-log(1). Users can copy the file into $HOME/.gnome2/gnome-system-log/plugins/`uname -p` to overwrite the system default one. The grablogs.conf file contains the following configuration categories: [configs] Each line under this category is interpreted as a config file of System. The plugin will open the config file and try to find all system paths of the logs. [commands] Each line under this category is interpreted as a shell command and will be execute through a pipe. And each line of the out- put of the command will be interpreted as a log path. [logs] Each line under this category is interpreted as a log path. FILES
/usr/lib/gnome-system-log/plugins/grablogs.conf The system default configuration file for the plugin libgrablogs.so $HOME/.gnome2/gnome-system-log/plugins/`uname -p`/grablogs.conf The user specific configuration file for the plugin libgrablogs.so EMAMPLE
[configs] /etc/syslog.conf [commands] for i in `svcs -aH -o FMRI | grep -v lrc `; do svcprop -p restarter/logfile $i 2>/dev/null || svcprop -q -p restarter/alt_logfile $i 2>/dev/null ; done [logs] /var/log/messages /var/log/secure /var/log/maillog /var/log/cron /var/log/Xorg.0.log /var/log/XFree86.0.log /var/log/auth.log /var/log/cups/error_log SEE ALSO
gnome-system-log(1), pipelog.conf(1) gnome-utils 2.16.0 13 Oct 2006 grablogs.conf(4)